Hackers part of APT28, a state-backed threat group linked to Russia's military intelligence service (GRU), are exploiting a Zimbra Collaboration Suite (ZCS) vulnerability in attacks targeting Ukrainian government entities. [...]

Password resets are often weaker than login security, making them a prime target for privilege escalation. Specops Software explains how attackers abuse reset workflows and how to secure them. [...]

Ubiquiti has patched two vulnerabilities in the UniFi Network Application, including a maximum-severity flaw that may allow attackers to take over user accounts. [...]

CISA warned U.S. organizations to follow Microsoft guidance to strengthen the Intune endpoint management tool after a cyberattack exploited it to wipe medical technology giant Stryker's systems. [...]

A new Android malware called Perseus is checking user-curated notes to steal  sensitive information, like passwords, recovery phrases, or financial data. [...]

A critical Microsoft SharePoint vulnerability patched in January is now being exploited in attacks, the Cybersecurity and Infrastructure Security Agency (CISA) warned. [...]

Identity protection company Aura has confirmed that an unauthorized party gained access to nearly 900,000 customer records containing names and email addresses. [...]

CISA has ordered U.S. government agencies to secure their servers against an actively exploited vulnerability in the Zimbra Collaboration Suite (ZCS). [...]

ConnectWise is warning ScreenConnect customers of a cryptographic signature verification vulnerability that could lead to unauthorized access and privilege escalation. [...]

The Interlock ransomware gang has been exploiting a maximum severity remote code execution (RCE) vulnerability in Cisco's Secure Firewall Management Center (FMC) software in zero-day attacks since late January. [...]

Marquis, a Texas-based financial services provider, revealed this week that a ransomware gang stole the data of over 670,000 individuals in an August 2025 cyberattack that also disrupted operations at 74 banks across the United States. [...]

Refund fraud is now a business, with methods and tutorials sold to exploit return policies for profit. Flare shows how fraudsters turn refunds and chargebacks into a repeatable profit model. [...]

A new exploit kit for iOS devices and delivery framework dubbed "Darksword" has been used to steal a wide range of personal information, including data from cryptocurrency wallet app. [...]

Customers of upscale department store chain Nordstrom received fraudulent messages from a legitimate company email address that promoted cryptocurrency scams disguised as a St. Patrick's Day promotion. [...]

Apple has released its first Background Security Improvements update to fix a WebKit flaw tracked as CVE-2026-20643 on iPhones, iPads, and Macs without requiring a full operating system upgrade. [...]

The GlassWorm supply-chain campaign has returned with a new, coordinated attack that targeted hundreds of packages, repositories, and extensions on GitHub, npm, and VSCode/OpenVSX extensions. [...]

The European Union Council has announced sanctions against three entities and two individuals for their involvement in cyberattacks targeting critical infrastructure in the region. [...]

AI agents are autonomous actors with real access to data and systems, not just copilots. Token Security explains why identity-based access control is critical to prevent misuse and data exposure. [...]

A new font-rendering attack causes AI assistants to miss malicious commands shown on webpages by hiding them in seemingly harmless HTML. [...]