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Single sign-on (SSO) is an authentication method that allows users to authenticate their identity for multiple applications with just one set of credentials. From a security standpoint, SSO is the gold standard. It ensures access without forcing users to remember multiple passwords and can be further secured with MFA. Furthermore, an estimated 61% of attacks stem from stolen credentials. By removing usernames and passwords, the attack surface is reduced as well. SSO helps companies meet strict compliance regulations by not only enabling businesses to secure their accounts, but by helping them demonstrate that they've taken the necessary steps to meet regulatory requirements. While SSO is an important step in securing SaaS apps and their data, having just SSOs in place to secure the SaaS stack in its entirety is not enough. SSO alone won't prevent a threat actor from accessing a SaaS app. It also won't protect SaaS apps that are onboarded without the IT team's knowledg...

A new information-stealing malware has set its sights on Apple's macOS operating system to siphon sensitive information from compromised devices. Dubbed  MacStealer , it's the latest example of a threat that uses Telegram as a command-and-control (C2) platform to exfiltrate data. It primarily affects devices running macOS versions Catalina and later running on M1 and M2 CPUs. "MacStealer has the ability to steal documents, cookies from the victim's browser, and login information," Uptycs researchers Shilpesh Trivedi and Pratik Jeware  said  in a new report. First advertised on online hacking forums for $100 at the start of the month, it is still a work in progress, with the malware authors planning to add features to capture data from Apple's Safari browser and the Notes app. In its current form, MacStealer is designed to extract iCloud Keychain data, passwords and credit card information from browsers like Google Chrome, Mozilla Firefox, and Brave. It al...

Microsoft has released an out-of-band update to address a privacy-defeating flaw in its screenshot editing tool for Windows 10 and Windows 11. The  issue , dubbed  aCropalypse , could enable malicious actors to recover edited portions of screenshots, potentially revealing sensitive information that may have been cropped out. Tracked as  CVE-2023-28303 , the vulnerability is rated 3.3 on the CVSS scoring system. It affects both the Snip & Sketch app on Windows 10 and the Snipping Tool on Windows 11. "The severity of this vulnerability is Low because successful exploitation requires uncommon user interaction and several factors outside of an attacker's control," Microsoft  said  in an advisory released on March 24, 2023. Successful exploitation requires that the following two prerequisites are met - The user must take a screenshot, save it to a file, modify the file (for example, crop it), and then save the modified file to the same location. The user...

In what's a case of setting a thief to catch a thief, the U.K. National Crime Agency (NCA) revealed that it has created a network of fake DDoS-for-hire websites to infiltrate the online criminal underground. "All of the NCA-run sites, which have so far been accessed by around several thousand people, have been created to look like they offer the tools and services that enable cyber criminals to execute these attacks," the law enforcement agency  said . "However, after users register, rather than being given access to cyber crime tools, their data is collated by investigators." The effort is part of an ongoing international joint effort called Operation PowerOFF in collaboration with authorities from the U.S., the Netherlands, Germany, Poland, and Europol aimed at dismantling criminal DDoS-for-hire infrastructures worldwide. DDoS-for-hire (aka "Booter" or "Stresser") services rent out access to a network of infected devices to other crim...

Microsoft on Friday shared guidance to help customers discover indicators of compromise (IoCs) associated with a recently patched Outlook vulnerability. Tracked as CVE-2023-23397 (CVSS score: 9.8), the  critical flaw  relates to a case of privilege escalation that could be exploited to steal NT LAN Manager (NTLM) hashes and stage a  relay attack  without requiring any user interaction. "External attackers could send specially crafted emails that will cause a connection from the victim to an untrusted location of attackers' control," the company  noted  in an advisory released this month. "This will leak the  Net-NTLMv2 hash  of the victim to the untrusted network which an attacker can then relay to another service and authenticate as the victim." The vulnerability was resolved by Microsoft as part of its  Patch Tuesday updates  for March 2023, but not before Russia-based threat actors weaponized the flaw in attacks targeting gover...

OpenAI on Friday disclosed that a bug in the Redis open source library was responsible for the exposure of other users' personal information and chat titles in the upstart's ChatGPT service earlier this week. The  glitch , which came to light on March 20, 2023, enabled certain users to view brief descriptions of other users' conversations from the chat history sidebar, prompting the company to temporarily shut down the chatbot. "It's also possible that the first message of a newly-created conversation was visible in someone else's chat history if both users were active around the same time," the company  said . The bug, it further added, originated in the  redis-py library , leading to a scenario where canceled requests could cause connections to be corrupted and return unexpected data from the database cache, in this case, information belonging to an unrelated user. To make matters worse, the San Francisco-based AI research company said it introduce...

A malicious Python package on the Python Package Index (PyPI) repository has been found to use Unicode as a trick to evade detection and deploy an info-stealing malware. The package in question, named  onyxproxy , was uploaded to PyPI on March 15, 2023, and comes with capabilities to harvest and exfiltrate credentials and other valuable data. It has since been taken down, but not before attracting a total of  183 downloads . According to software supply chain security firm Phylum, the package incorporates its malicious behavior in a setup script that's packed with thousands of seemingly legitimate code strings. These strings include a mix of bold and italic fonts and are still readable and can be parsed by the Python interpreter, only to activate the execution of the stealer malware upon installation of the package.  "An obvious and immediate benefit of this strange scheme is readability," the company  noted . "Moreover, these visible differences do not prevent...

Any app that can improve business operations is quickly added to the SaaS stack. However, employees don't realize that this SaaS-to-SaaS connectivity, which typically takes place outside the view of the security team, significantly increases risk. Whether employees connect through Microsoft 365, Google Workspace, Slack, Salesforce, or any other app, security teams have no way to quantify their exposure. These 'secondary' apps can be requesting an intrusive set of permissions or be malicious. Every click authorizing access may grant the right to edit or delete company files, send emails on behalf of the user, create new files, or otherwise handle data in a way that poses a profound threat to the organization's security. To handle the SaaS Security challenges, security teams need to address the entire SaaS ecosystem.  Today's SaaS security evolution has expanded SaaS security beyond simply preventing access. It extends far beyond securing the app. Today's orga...

Cloud-based repository hosting service GitHub said it took the step of replacing its RSA SSH host key used to secure Git operations "out of an abundance of caution" after it was briefly exposed in a public repository. The activity, which was carried out at 05:00 UTC on March 24, 2023, is said to have been undertaken as a measure to prevent any bad actor from impersonating the service or eavesdropping on users' operations over SSH. "This key does not grant access to GitHub's infrastructure or customer data," Mike Hanley, chief security officer and SVP of engineering at GitHub,  said  in a post. "This change only impacts Git operations over SSH using RSA." The move does not impact Web traffic to GitHub.com and Git operations performed via HTTPS. No change is required for ECDSA or Ed25519 users. The Microsoft-owned company said there is no evidence that the exposed SSH private key was exploited by adversaries. It did not disclose how long the se...