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China-Linked Hackers Use TernDoor, PeerTime, BruteEntry in South American Telecom Attacks

China-Linked Hackers Use TernDoor, PeerTime, BruteEntry in South American Telecom Attacks

Mar 06, 2026 Cyber Espionage / Threat Intelligence
A China-linked advanced persistent threat (APT) actor has been targeting critical telecommunications infrastructure in South America since 2024, targeting Windows and Linux systems and edge devices with three different implants. The activity is being tracked by Cisco Talos under the moniker UAT-9244 , describing it as closely associated with another cluster known as FamousSparrow . It's worth noting that FamousSparrow is assessed to share tactical overlaps with Salt Typhoon , a China-nexus espionage group known for its targeting of telecommunication service providers. Despite the similar targeting footprint between UAT-9244 and Salt Typhoon, there is no conclusive evidence that ties the two clusters together. In the campaign analyzed by the cybersecurity company, the attack chains have been found to distribute three previously undocumented implants: TernDoor targeting Windows, PeerTime (aka angrypeer) targeting Linux, and BruteEntry, which is installed on network edge device...
Hikvision and Rockwell Automation CVSS 9.8 Flaws Added to CISA KEV Catalog

Hikvision and Rockwell Automation CVSS 9.8 Flaws Added to CISA KEV Catalog

Mar 06, 2026 Vulnerability / Network Security
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added two security flaws impacting Hikvision and Rockwell Automation products to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The critical-severity vulnerabilities are listed below - CVE-2017-7921 (CVSS score: 9.8) - An improper authentication vulnerability affecting multiple Hikvision products that could allow a malicious user to escalate privileges on the system and gain access to sensitive information.  CVE-2021-22681 (CVSS score: 9.8) - An insufficiently protected credentials vulnerability affecting multiple Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, and Logix Controllers that could allow an unauthorized user with network access to the controller to bypass the verification mechanism and authenticate with it, as well as alter its configuration and/or application code. The addition of CVE-2017-7921 to the KEV catalog comes more...
Cisco Confirms Active Exploitation of Two Catalyst SD-WAN Manager Vulnerabilities

Cisco Confirms Active Exploitation of Two Catalyst SD-WAN Manager Vulnerabilities

Mar 05, 2026 Vulnerability / Enterprise Security
Cisco has disclosed that two more vulnerabilities affecting Catalyst SD-WAN Manager (formerly SD-WAN vManage) have come under active exploitation in the wild. The vulnerabilities in question are listed below - CVE-2026-20122 (CVSS score: 7.1) - An arbitrary file overwrite vulnerability that could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. Successful exploitation requires the attacker to have valid read-only credentials with API access on the affected system. CVE-2026-20128 (CVSS score: 5.5) - An information disclosure vulnerability that could allow an authenticated, local attacker to gain Data Collection Agent (DCA) user privileges on an affected system. Successful exploitation requires the attacker to have valid vManage credentials on the affected system. Patches for the security defects, along with CVE-2026-20126, CVE-2026-20129, and CVE-2026-20133, were released by Cisco late last month in the following versions - Earli...
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5 Cloud Security Risks You Can’t Afford to Ignore

websiteSentinelOneEnterprise Security / Cloud Security
Get expert analysis, attacker insights, and case studies in our 2025 risk report.
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Accelerate your AI Initiatives

websiteZsclaerZero Trust / AI Security
See how Zscaler’s new innovations are delivering a unified approach to secure your AI journey.
Preparing for the Quantum Era: Post-Quantum Cryptography Webinar for Security Leaders

Preparing for the Quantum Era: Post-Quantum Cryptography Webinar for Security Leaders

Mar 05, 2026 Encryption / Data Protection
Most organizations assume encrypted data is safe. But many attackers are already preparing for a future where today’s encryption can be broken. Instead of trying to decrypt information now, they are collecting encrypted data and storing it so it can be decrypted later using quantum computers. This tactic—known as “harvest now, decrypt later” —means sensitive data transmitted today could become readable years from now once quantum capabilities mature. Security leaders who want to understand this risk and how to prepare can explore it in detail in the upcoming webinar on Post-Quantum Cryptography best practices , where experts will explain practical ways organizations can begin protecting data before quantum decryption becomes possible. Why Post-Quantum Cryptography Matters Quantum computing is advancing quickly, and most modern encryption algorithms, such as RSA and ECC, will not remain secure forever. For organizations that must keep data confidential for many years—financial r...
Where Multi-Factor Authentication Stops and Credential Abuse Starts

Where Multi-Factor Authentication Stops and Credential Abuse Starts

Mar 05, 2026 Windows Security / Active Directory
Organizations typically roll out multi-factor authentication (MFA) and assume stolen passwords are no longer enough to access systems. In Windows environments, that assumption is often wrong. Attackers still compromise networks every day using valid credentials. The issue is not MFA itself, but coverage.  Enforced through an identity provider (IdP) such as Microsoft Entra ID, Okta, or Google Workspace, MFA works well for cloud apps and federated sign-ins. But many Windows logons rely solely on Active Directory (AD) authentication paths that never trigger MFA prompts. To reduce credential-based compromise, security teams need to understand where Windows authentication happens outside their identity stack. Seven Windows authentication paths that attackers rely on 1. Interactive Windows logon (local or domain joined) When a user signs in directly to a Windows workstation or server, authentication is typically handled by AD (via Kerberos or NTLM), not by a cloud IdP.  In h...
Building a High-Impact Tier 1: The 3 Steps CISOs Must Follow

Building a High-Impact Tier 1: The 3 Steps CISOs Must Follow

Mar 03, 2026 Network Security / Regulatory Compliance
Every CISO knows the uncomfortable truth about their Security Operations Center: the people most responsible for catching threats in real time are the people with the least experience. Tier 1 analysts sit at the front line of detection, and yet they are also the most vulnerable to the cognitive and organizational pressures that quietly erode SOC performance over time. The Paradox at the Gate: Why Tier 1 Carries the Weight but Lacks the Armor Tier 1 is the layer that processes the highest volume of alerts, performs initial triage, and determines what gets escalated. But it is built on a foundation that is structurally fragile. Entry-level analysts, high turnover rates, and relentless alert queues create conditions where even well-designed detection rules fail to translate into timely, accurate responses. The paradox is here:  Tier 1 performance defines SOC performance; But Tier 1 is often the least supported, least empowered, and most cognitively overloaded layer Tier 1 an...
Open-Source CyberStrikeAI Deployed in AI-Driven FortiGate Attacks Across 55 Countries

Open-Source CyberStrikeAI Deployed in AI-Driven FortiGate Attacks Across 55 Countries

Mar 03, 2026 Vulnerability / Artificial Intelligence
The threat actor behind the recently disclosed artificial intelligence (AI)-assisted campaign targeting Fortinet FortiGate appliances leveraged an open-source, AI-native security testing platform called CyberStrikeAI to execute the attacks. The new findings come from Team Cymru, which detected its use following an analysis of the IP address ("212.11.64[.]250") that was used by the suspected Russian-speaking threat actor to conduct automated mass scanning for vulnerable appliances. CyberStrikeAI is an "open-source artificial intelligence (AI) offensive security tool (OST) developed by a China-based developer who we assess has some ties to the Chinese government," security researcher Will Thomas (aka @BushidoToken ) said . Details of the AI-powered activity came to light last month when Amazon Threat Intelligence said it detected the unknown attacker systematically targeting FortiGate devices using generative artificial intelligence (AI) services like Anthropic ...
⚡ Weekly Recap: SD-WAN 0-Day, Critical CVEs, Telegram Probe, Smart TV Proxy SDK and More

⚡ Weekly Recap: SD-WAN 0-Day, Critical CVEs, Telegram Probe, Smart TV Proxy SDK and More

Mar 02, 2026 Cybersecurity / Hacking
This week is not about one big event. It shows where things are moving. Network systems, cloud setups, AI tools, and common apps are all being pushed in different ways. Small gaps in access control, exposed keys, and normal features are being used as entry points. The pattern becomes clear only when you see everything together. Faster scans, smarter misuse of trusted services, and steady targeting of high-value sectors. Each story adds context. Reading them all gives a fuller picture of how today’s threat landscape is evolving. ⚡ Threat of the Week Cisco SD-WAN Zero-Day Exploited — A newly disclosed maximum-severity security flaw in Cisco Catalyst SD-WAN Controller (formerly vSmart) and Catalyst SD-WAN Manager (formerly vManage) has come under active exploitation in the wild as part of malicious activity that dates back to 2023. The vulnerability, tracked as CVE-2026-20127 (CVSS score: 10.0), allows an unauthenticated remote attacker to bypass authentication and obtain administr...
How to Protect Your SaaS from Bot Attacks with SafeLine WAF

How to Protect Your SaaS from Bot Attacks with SafeLine WAF

Mar 02, 2026 Application Security / DevOps
Most SaaS teams remember the day their user traffic started growing fast. Few notice the day bots started targeting them. On paper, everything looks great: more sign-ups, more sessions, more API calls. But in reality, something feels off: Sign-ups increase, but users aren’t activating. Server costs rise faster than revenue. Logs are filled with repeated requests from strange user agents. If this sounds familiar, it’s not just a sign of popularity. Your app is under constant automated attack, even if no ransom emails have arrived. Your load balancer sees traffic. Your product team sees “growth”. Your database sees pain. This is where a WAF like SafeLine fits in. SafeLine is a self-hosted web application firewall (WAF) that sits in front of your app and inspects every HTTP request before it reaches your code.  It does not just look for broken packets or known bad IPs. It watches how traffic behaves: what it sends, how fast, in what patterns, and against which endpoints. ...
900+ Sangoma FreePBX Instances Compromised in Ongoing Web Shell Attacks

900+ Sangoma FreePBX Instances Compromised in Ongoing Web Shell Attacks

Feb 27, 2026 Network Security / Vulnerability
The Shadowserver Foundation has revealed that over 900 Sangoma FreePBX instances still remain infected with web shells as part of attacks that exploited a command injection vulnerability starting in December 2025. Of these, 401 instances are located in the U.S., followed by 51 in Brazil, 43 in Canada, 40 in Germany, and 36 in France. The non-profit entity said the compromises are likely accomplished via the exploitation of CVE-2025-64328 (CVSS score: 8.6), a high-severity security flaw that could enable post-authentication command injection. "The impact is that any user with access to the FreePBX Administration panel could leverage this vulnerability to execute arbitrary shell commands on the underlying host," FreePBX said in an advisory for the flaw in November 2025. "An attacker could leverage this to obtain remote access to the system as the asterisk user." Security researcher M. Cory Billington, who is credited with discovering and reporting the vulnera...
Cisco SD-WAN Zero-Day CVE-2026-20127 Exploited Since 2023 for Admin Access

Cisco SD-WAN Zero-Day CVE-2026-20127 Exploited Since 2023 for Admin Access

Feb 26, 2026 Vulnerability / Network Security
A newly disclosed maximum-severity security flaw in Cisco Catalyst SD-WAN Controller (formerly vSmart) and Catalyst SD-WAN Manager (formerly vManage) has come under active exploitation in the wild as part of malicious activity that dates back to 2023. The vulnerability, tracked as CVE-2026-20127 (CVSS score: 10.0), allows an unauthenticated remote attacker to bypass authentication and obtain administrative privileges on an affected system by sending a crafted request. Successful exploitation of the flaw could allow the adversary to obtain elevated privileges and log in to the system as an internal, high-privileged, non-root user account. "This vulnerability exists because the peering authentication mechanism in an affected system is not working properly," Cisco said in an advisory, adding the threat actor could leverage the non-root user account to access NETCONF and manipulate network configuration for the SD-WAN fabric.  The shortcoming affects the following deploym...
Google Disrupts UNC2814 GRIDTIDE Campaign After 53 Breaches Across 42 Countries

Google Disrupts UNC2814 GRIDTIDE Campaign After 53 Breaches Across 42 Countries

Feb 25, 2026 Cyber Espionage / Network Security
Google on Wednesday disclosed that it worked with industry partners to disrupt the infrastructure of a suspected China-nexus cyber espionage group tracked as UNC2814 that breached at least 53 organizations across 42 countries. "This prolific, elusive actor has a long history of targeting international governments and global telecommunications organizations across Africa, Asia, and the Americas," Google Threat Intelligence Group (GTIG) and Mandiant said in a report published today. UNC2814 is also suspected to be linked to additional infections in more than 20 other nations. The tech giant, which has been tracking the threat actor since 2017, has been observed using API calls to communicate with software-as-a-service (SaaS) apps as command-and-control (C2) infrastructure. The idea, it added, is to disguise their malicious traffic as benign. Central to the hacking group's operations is a novel backdoor dubbed GRIDTIDE that abuses Google Sheets API as a communication ...
⚡ Weekly Recap: Double-Tap Skimmers, PromptSpy AI, 30Tbps DDoS, Docker Malware & More

⚡ Weekly Recap: Double-Tap Skimmers, PromptSpy AI, 30Tbps DDoS, Docker Malware & More

Feb 23, 2026 Cybersecurity / Hacking
Security news rarely moves in a straight line. This week, it feels more like a series of sharp turns, some happening quietly in the background, others playing out in public view. The details are different, but the pressure points are familiar. Across devices, cloud services, research labs, and even everyday apps, the line between normal behavior and hidden risk keeps getting thinner. Tools meant to protect, update, or improve systems are also becoming pathways when something goes wrong. This recap gathers the signals in one place. Quick reads, real impact, and developments that deserve a closer look before they become next week’s bigger problem. ⚡ Threat of the Week Dell RecoverPoint for VMs Zero-Day Exploited — A maximum severity security vulnerability in Dell RecoverPoint for Virtual Machines has been exploited as a zero-day by a suspected China-nexus threat cluster dubbed UNC6201 since mid-2024. The activity involves the exploitation of CVE-2026-22769 (CVSS score: 10.0), a ca...
AI-Assisted Threat Actor Compromises 600+ FortiGate Devices in 55 Countries

AI-Assisted Threat Actor Compromises 600+ FortiGate Devices in 55 Countries

Feb 21, 2026 Threat Intelligence / Artificial Intelligence
A Russian-speaking, financially motivated threat actor has been observed taking advantage of commercial generative artificial intelligence (AI) services to compromise over 600 FortiGate devices located in 55 countries. That's according to new findings from Amazon Threat Intelligence, which said it observed the activity between January 11 and February 18, 2026. "No exploitation of FortiGate vulnerabilities was observed—instead, this campaign succeeded by exploiting exposed management ports and weak credentials with single-factor authentication, fundamental security gaps that AI helped an unsophisticated actor exploit at scale," CJ Moses, Chief Information Security Officer (CISO) of Amazon Integrated Security, said in a report. The tech giant described the threat actor as having limited technical capabilities, a constraint they overcame by relying on multiple commercial generative AI tools to implement various phases of the attack cycle, such as tool development, attac...
BeyondTrust Flaw Used for Web Shells, Backdoors, and Data Exfiltration

BeyondTrust Flaw Used for Web Shells, Backdoors, and Data Exfiltration

Feb 20, 2026 Vulnerability / Cyber Attack
Threat actors have been observed exploiting a recently disclosed critical security flaw impacting BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) products to conduct a wide range of malicious actions, including deploying VShell and  The vulnerability, tracked as CVE-2026-1731 (CVSS score: 9.9), allows attackers to execute operating system commands in the context of the site user. In a report published Thursday, Palo Alto Networks Unit 42 said it detected the security flaw being actively exploited in the wild for network reconnaissance, web shell deployment, command-and-control (C2), backdoor and remote management tool installs, lateral movement, and data theft. The campaign has targeted financial services, legal services, high technology, higher education, wholesale and retail, and healthcare sectors across the U.S., France, Germany, Australia, and Canada. The cybersecurity company described the vulnerability as a case of sanitization failure that enab...
Microsoft Patches CVE-2026-26119 Privilege Escalation in Windows Admin Center

Microsoft Patches CVE-2026-26119 Privilege Escalation in Windows Admin Center

Feb 19, 2026 Vulnerability / Network Security
Microsoft has disclosed a now-patched security flaw in Windows Admin Center that could allow an attacker to escalate their privileges. Windows Admin Center is a locally deployed, browser-based management tool set that lets users manage their Windows Clients, Servers, and Clusters without the need for connecting to the cloud. The high-severity vulnerability, tracked as CVE-2026-26119 , carries a CVSS score of 8.8 out of a maximum of 10.0 "Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network," Microsoft said in an advisory released on February 17, 2026. "The attacker would gain the rights of the user that is running the affected application." Microsoft credited Semperis researcher Andrea Pierini with discovering and reporting the vulnerability. It's worth mentioning that the security issue was patched by the tech giant in Windows Admin Center version 2511 released in December 2025.  While the ...
Grandstream GXP1600 VoIP Phones Exposed to Unauthenticated Remote Code Execution

Grandstream GXP1600 VoIP Phones Exposed to Unauthenticated Remote Code Execution

Feb 18, 2026 Network Security / Enterprise Security
Cybersecurity researchers have disclosed a critical security flaw in the Grandstream GXP1600 series of VoIP phones that could allow an attacker to seize control of susceptible devices. The vulnerability, tracked as CVE-2026-2329 , carries a CVSS score of 9.3 out of a maximum of 10.0. It has been described as a case of unauthenticated stack-based buffer overflow that could result in remote code execution. "A remote attacker can leverage CVE-2026-2329 to achieve unauthenticated remote code execution (RCE) with root privileges on a target device," Rapid7 researcher Stephen Fewer, who discovered and reported the bug on January 6, 2026, said . According to the cybersecurity company, the issue is rooted in the device's web-based API service ("/cgi-bin/api.values.get") and is accessible in a default configuration without requiring authentication. This endpoint is designed to fetch one or more configuration values from the phone, such as the firmware version number...
Dell RecoverPoint for VMs Zero-Day CVE-2026-22769 Exploited Since Mid-2024

Dell RecoverPoint for VMs Zero-Day CVE-2026-22769 Exploited Since Mid-2024

Feb 18, 2026 Zero-Day / Vulnerability
A maximum severity security vulnerability in Dell RecoverPoint for Virtual Machines has been exploited as a zero-day by a suspected China-nexus threat cluster dubbed UNC6201 since mid-2024, according to a new report from Google Mandiant and Google Threat Intelligence Group (GTIG). The activity involves the exploitation of CVE-2026-22769 (CVSS score: 10.0), a case of hard-coded credentials affecting versions prior to 6.0.3.1 HF1. Other products, including RecoverPoint Classic, are not vulnerable to the flaw. "This is considered critical as an unauthenticated remote attacker with knowledge of the hardcoded credential could potentially exploit this vulnerability, leading to unauthorized access to the underlying operating system and root-level persistence," Dell said in a bulletin released Tuesday. The issue impacts the following products - RecoverPoint for Virtual Machines Version 5.3 SP4 P1 - Migrate from RecoverPoint for Virtual Machines 5.3 SP4 P1 to 6.0 SP3, and th...
Webinar: How Modern SOC Teams Use AI and Context to Investigate Cloud Breaches Faster

Webinar: How Modern SOC Teams Use AI and Context to Investigate Cloud Breaches Faster

Feb 17, 2026 Cloud Security / Digital Forensics
Cloud attacks move fast — faster than most incident response teams. In data centers, investigations had time. Teams could collect disk images, review logs, and build timelines over days. In the cloud, infrastructure is short-lived. A compromised instance can disappear in minutes. Identities rotate. Logs expire. Evidence can vanish before analysis even begins. Cloud forensics is fundamentally different from traditional forensics. If investigations still rely on manual log stitching, attackers already have the advantage. Register: See Context-Aware Forensics in Action ➜ Why Traditional Incident Response Fails in the Cloud Most teams face the same problem: alerts without context. You might detect a suspicious API call, a new identity login, or unusual data access — but the full attack path remains unclear across the environment. Attackers use this visibility gap to move laterally, escalate privileges, and reach critical assets before responders can connect the activity. To...
My Day Getting My Hands Dirty with an NDR System

My Day Getting My Hands Dirty with an NDR System

Feb 17, 2026 Network Security / Threat Detection
My objective As someone relatively inexperienced with network threat hunting, I wanted to get some hands-on experience using a network detection and response (NDR) system. My goal was to understand how NDR is used in hunting and incident response, and how it fits into the daily workflow of a Security Operations Center (SOC). Corelight’s Investigator software , part of its Open NDR Platform, is designed to be user-friendly (even for junior analysts) so I thought it would be a good fit for me. I was given access to a production version of Investigator that had been loaded with pre-recorded network traffic. This is a common way to learn how to use this type of software. While I’m new to threat hunting, I do have experience looking at network traffic flows. I was even an early user of one of the first network traffic analyzers called Sniffer. Sniffers were specialized PCs equipped with network adapters designed to capture traffic and packets. These computers were the foundation on whi...
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