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APKPure, one of the largest alternative app stores outside of the Google Play Store, was infected with malware this week, allowing threat actors to distribute Trojans to Android devices. In a supply-chain attack similar to that of German telecommunications  equipment manufacturer Gigaset , the APKPure client version 3.17.18 is said to have been tampered with in an attempt to trick unsuspecting users into downloading and installing malicious applications linked to the malicious code built into the APKpure app. The development was reported by researchers from  Doctor Web  and  Kaspersky . "This trojan belongs to the dangerous Android.Triada malware family capable of downloading, installing and uninstalling software without users' permission," Doctor Web researchers said. According to Kaspersky, the APKPure version 3.17.18 was tweaked to incorporate an advertisement SDK that acts as a Trojan dropper designed to deliver other malware to a victim's device. "This...

Details have emerged about a "massive ad fraud operation" that leverages hundreds of apps on the Google Play Store to perform a host of nefarious activities. The campaign has been codenamed Konfety – the Russian word for Candy – owing to its abuse of a mobile advertising software development kit (SDK) associated with a Russia-based ad network called CaramelAds . "Konfety represents a new form of fraud and obfuscation, in which threat actors operate 'evil twin' versions of 'decoy twin' apps available on major marketplaces," HUMAN's Satori Threat Intelligence Team said in a technical report shared with The Hacker News. While the decoy apps, totaling more than 250 in number, are harmless and distributed via the Google Play Store, their respective "evil twins" are disseminated through a malvertising campaign designed to facilitate ad fraud, monitor web searches, install browser extensions, and sideload APK files code onto users' d...

Threat actors are increasingly mimicking legitimate applications like Skype, Adobe Reader, and VLC Player as a means to abuse trust relationships and increase the likelihood of a successful social engineering attack. Other most impersonated legitimate apps by icon include 7-Zip, TeamViewer, CCleaner, Microsoft Edge, Steam, Zoom, and WhatsApp, an analysis from VirusTotal has revealed. "One of the simplest social engineering tricks we've seen involves making a malware sample seem a legitimate program," VirusTotal  said  in a Tuesday report. "The icon of these programs is a critical feature used to convince victims that these programs are legitimate." It's no surprise that threat actors resort to a variety of approaches to compromise endpoints by tricking unwitting users into downloading and running seemingly innocuous executables. This, in turn, is primarily achieved by taking advantage of genuine domains in a bid to get around IP-based firewall defenses...

Criminals don't need to be clever all the time; they just follow the easiest path in: trick users, exploit stale components, or abuse trusted systems like OAuth and package registries. If your stack or habits make any of those easy, you're already a target. This week's ThreatsDay highlights show exactly how those weak points are being exploited — from overlooked misconfigurations to sophisticated new attack chains that turn ordinary tools into powerful entry points. Lumma Stealer Stumbles After Doxxing Drama Decline in Lumma Stealer Activity After Doxxing Campaign The activity of the Lumma Stealer (aka Water Kurita) information stealer has witnessed a "sudden drop" since last months after the identities of five alleged core group members were exposed as part of what's said to be an aggressive underground exposure campaign dubbed Lumma Rats since late August 2025. The targeted individuals are affiliated with the malware's development and administ...

In a world where threats are persistent, the modern CISO's real job isn't just to secure technology—it's to preserve institutional trust and ensure business continuity. This week, we saw a clear pattern: adversaries are targeting the complex relationships that hold businesses together, from supply chains to strategic partnerships. With new regulations and the rise of AI-driven attacks, the decisions you make now will shape your organization's resilience for years to come. This isn't just a threat roundup; it's the strategic context you need to lead effectively. Here's your full weekly recap, packed with the intelligence to keep you ahead. ⚡ Threat of the Week New HybridPetya Ransomware Bypasses UEFI Secure Boot — A copycat version of the infamous Petya/NotPetya malware dubbed HybridPetya has been spotted. But no telemetry exists to suggest HybridPetya has been deployed in the wild yet. It also differs in one key respect: It can compromise the secure boot featu...

Power doesn't just disappear in one big breach. It slips away in the small stuff—a patch that's missed, a setting that's wrong, a system no one is watching. Security usually doesn't fail all at once; it breaks slowly, then suddenly. Staying safe isn't about knowing everything—it's about acting fast and clear before problems pile up. Clarity keeps control. Hesitation creates risk. Here are this week's signals—each one pointing to where action matters most. ⚡ Threat of the Week Ghost Tap NFC-Based Mobile Fraud Takes Off — A new Android trojan called PhantomCard has become the latest malware to abuse near-field communication (NFC) to conduct relay attacks for facilitating fraudulent transactions in attacks targeting banking customers in Brazil. In these attacks, users who end up installing the malicious apps are instructed to place their credit/debit card on the back of the phone to begin the verification process, only for the card data to be sent to an attacker-controlled NFC relay...

This week, a 23-year-old Serbian activist found themselves at the crossroads of digital danger when a sneaky zero-day exploit turned their Android device into a target. Meanwhile, Microsoft pulled back the curtain on a scheme where cybercriminals used AI tools for harmful pranks, and a massive trove of live secrets was discovered, reminding us that even the tools we rely on can hide risky surprises. We've sifted through a storm of cyber threats—from phishing scams to malware attacks—and broken down what it means for you in clear, everyday language. Get ready to dive into the details, understand the risks, and learn how to protect yourself in an increasingly unpredictable online world. ⚡ Threat of the Week Serbian Youth Activist Targeted by Android 0-Day Exploit Chain — A 23-year-old Serbian youth activist had their Android phone targeted by a zero-day exploit chain developed by Cellebrite to unlock the device and likely deploy an Android spyware called NoviSpy. The flaws combined ...

Cyber threats are evolving faster than ever. Attackers now combine social engineering, AI-driven manipulation, and cloud exploitation to breach targets once considered secure. From communication platforms to connected devices, every system that enhances convenience also expands the attack surface. This edition of ThreatsDay Bulletin explores these converging risks and the safeguards that help preserve trust in an increasingly intelligent threat landscape. How Threat Actors Abuse Microsoft Teams Attackers Abuse Microsoft Teams for Extortion, Social Engineering, and Financial Theft Microsoft detailed the various ways threat actors can abuse its Teams chat software at various stages of the attack chain, even using it to support financial theft through extortion, social engineering, or technical means. " Octo Tempest has used communication apps, including Teams, to send taunting and threatening messages to organizations, defenders, and incident response teams as p...

Welcome to this week's Threatsday Bulletin —your Thursday check-in on the latest twists and turns in cybersecurity and hacking. The digital threat landscape never stands still. One week it's a critical zero-day, the next it's a wave of phishing lures or a state-backed disinformation push. Each headline is a reminder that the rules keep changing and that defenders—whether you're protecting a global enterprise or your own personal data—need to keep moving just as fast. In this edition we unpack fresh exploits, high-profile arrests, and the newest tactics cybercriminals are testing right now. Grab a coffee, take five minutes, and get the key insights that help you stay a step ahead of the next breach. Firmware fights back SonicWall Releases SMA 100 Firmware Update to Remove Rootkit SonicWall has released a firmware update that it said will help customers remove rootkit malware deployed in attacks targeting SMA 100 series devices. "S...

Meta Platforms, Microsoft, and the U.S. Department of Justice (DoJ) have announced independent actions to tackle cybercrime and disrupt services that enable scams, fraud, and phishing attacks. To that end, Microsoft's Digital Crimes Unit (DCU) said it seized 240 fraudulent websites associated with an Egypt-based cybercrime facilitator named Abanoub Nady (aka MRxC0DER and mrxc0derii), who advertised for sale a phishing kit called ONNX. Nady's criminal operation is said to date as far back as 2017. "Numerous cybercriminal and online threat actors purchased these kits and used them in widespread phishing campaigns to bypass additional security measures and break into Microsoft customer accounts," Microsoft DCU's Steven Masada said . "While all sectors are at risk, the financial services industry has been heavily targeted given the sensitive data and transactions they handle. In these instances, a successful phish can have devastating real-world consequences...

The comfort zone in cybersecurity is gone. Attackers are scaling down, focusing tighter, and squeezing more value from fewer, high-impact targets. At the same time, defenders face growing blind spots — from spoofed messages to large-scale social engineering. This week's findings show how that shrinking margin of safety is redrawing the threat landscape. Here's what's making headlines. Hijack Loader expands its reach in Latin America LATAM Targeted by PureHVNC Phishing emails containing SVG file attachments targeting Colombian, Spanish-speaking individuals with themes relating to the Attorney General's office of Colombia have been used to deliver PureHVNC RAT . "The emails entice the user to download an 'official document' from the judicial information system, which starts the infection chain of executing a Hijack Loader executable that leads to the PureHVNC Remote Access Trojan (RAT)," IBM X-Force said . The activity w...