A new report from the Acronis Threat Research Unit has uncovered a vulnerability in Microsoft Exchange Online settings that could enable email spoofing attacks.
This issue primarily affects users with a hybrid configuration of on-premises Exchange and Exchange Online, and those utilizing third-party email security solutions. In July 2023, Microsoft introduced a major change in how it handles DMARC (Domain-based Message Authentication, Reporting, and Conformance) within Microsoft Exchange. This update was intended to bolster security by enhancing how email servers verify incoming emails’ legitimacy. Unfortunately, despite clear guidance from Microsoft, a considerable number of users have yet to implement these security measures.
Read more…
Source: TechRadar News
Related:
- No fix yet for critical RCE bug in open-source Git service Gogs – exploit module is out
May 29, 2026
There’s a huge hole and no one is patching it thus far. A critical, remote code execution (RCE) bug in Gogs, a popular open-source self-hosted Git service, can be exploited by any authenticated user – no special privileges required – on a default installation to fully compromise vulnerable servers, steal credentials and multi-factor authentication secrets, ...
- Microsoft under fire for threatening security researcher with criminal investigation
May 29, 2026
After a security researcher published a series of unpatched bugs in Microsoft products, along with code to exploit them, the company is now threatening to take legal action and call the cops on them. Microsoft’s veiled threat reignites a long-running argument over what responsibility, if any, security researchers have to disclose vulnerabilities affecting large and ...
- Supply Chain Compromises Impact Nx Console and GitHub Repositories
May 28, 2026
CISA is prioritizing the response to multiple emerging software supply chain intrusion campaigns targeting developer ecosystems Continuous Integration/Continuous Development (CI/CD) pipelines. These recent incidents, including the GitHub compromise via a malicious Nx Console Visual Studio Code (VS Code) extension and the “Megalodon” supply chain intrusion campaign, demonstrate how cyber threat actors are abusing tools and ...
- Ghost CMS flaw hijacked to target hundreds of websites with ClickFix attacks
May 26, 2026
A critical-severity vulnerability that reportedly was patched three months ago is being exploited in a massive ClickFix campaign, researchers have claimed. In mid-February 2026, a critical SQL injection vulnerability was found in Ghost CMS, a popular open-source Content Management System (CMS) currently used by more than 57,000 websites, including the likes of 404 Media, The Canadian ...
- Industrial robots targeted by malware, which could open them up to hacking
May 25, 2026
A critical command injection vulnerability has been discovered in Universal Robots PolyScope 5, the operating system whucg powers the company’s collaborative robots. The flaw, tracked as CVE-2026-8153, carries a CVSS score of 9.8 and affects all software versions prior to PolyScope 5.25.1. This vulnerability could lead to complete compromise of the robot controller, affecting the confidentiality, integrity, and availability ...
- Another major Linux security flaw revealed — nine-year old issue could spell disaster for users
May 23, 2026
Security researchers Qualys discovered a major flaw in the Linux operating system (OS) that could let any ordinary user, or malicious actor, gain full admin access on vulnerable endpoints. This bug lingered in Linux systems since 2016, and affects the default installations of several major distributions, including Red Hat, SUSE, Debian, Fedora, AlmaLinux, CloudLinux, and others. Read more… Source: TechRadar News Sign up ...