28 May, 2026

Dutch police arrests suspect linked to Ajax football club hack

The Dutch National Police arrested a 35-year-old man suspected of hacking the professional football club Ajax Amsterdam (AFC Ajax) earlier this year. The suspect was arrested in Buren and, according to a Tuesday press release, he is believed to have hacked into the football club’s systems multiple times. “On the morning of Tuesday, May 26, the […]

2 mins read

Windows 11 KB5089573 update released with performance improvements

Microsoft has released the KB5089573 preview cumulative update for Windows 11 versions 25H2 and 24H2, which comes with 30 changes, including performance and reliability improvements. The KB5089573 update is part of the company’s non-security preview schedule, designed to introduce new features and fixes at the end of each month, allowing IT admins and users to test them […]

3 mins read

KnowledgeDeliver flaw exploited as a zero-day to install web shells

Hackers exploited a critical zero-day vulnerability in a server running the KnowledgeDeliver learning management system (LMS) to deploy the Godzilla web shell. The flaw is a deserialization issue tracked as CVE-2026-5426 and can be exploited without authentication. It stems from the use of a shared hardcoded machine key in the web portal configuration across all KnowledgeDeliver customer […]

3 mins read

Charter confirms data breach after ShinyHunters extortion threat

U.S. telecommunications giant Charter Communications has confirmed it suffered a data breach after the ShinyHunters extortion group threatened to leak stolen data unless a ransom is paid. Charter Communications is one of the largest broadband providers in the United States, serving tens of millions of residential and business customers through its Spectrum brand. In a […]

2 mins read

Microsoft Defender can now automatically isolate hacked endpoints

Microsoft is testing a new Defender for Endpoint capability that will automatically isolate compromised endpoints to thwart attackers’ attempts to move laterally across the network. This is now available in preview mode and works as part of automatic attack disruption, a feature designed to contain attacks, limit their impact, and provide security teams with more remediation time. […]

2 mins read

CISA orders feds to patch actively exploited Drupal vulnerability

CISA has given U.S. government agencies until Wednesday evening to secure their servers against an SQL injection vulnerability in the Drupal content management system (CMS) that it flagged as actively exploited. Drupal is typically used by large organizations managing massive data structures and multi-site installations, including government entities, educational organizations, major research universities, and high-profile […]

2 mins read

Microsoft: Domain Controller lookup may fail on Windows Server 2016

Microsoft has confirmed a new known issue affecting Windows Server 2016 systems that causes domain controller lookups to fail after installing the KB5087537 May 2026 security update. Windows Server 2016 reached the end of mainstream support in January 2022, but Microsoft has pushed back the extended support end date by 5 years to allow customers to […]

1 min read

7-Eleven data breach exposes personal information of 185,000 people

The ShinyHunters extortion gang stole the personal information of over 183,000 people after hacking the systems of convenience store chain giant 7-Eleven in April, according to data breach notification service Have I Been Pwned. Founded in 1927, 7-Eleven now operates, franchises, and licenses more than 86,000 stores worldwide, including 13,000 stores in the U.S. and […]

3 mins read

Anthropic’s restricted Claude Mythos model may be coming to Claude Code

Anthropic appears to be preparing for the public rollout of “Mythos,” which was announced in April as a restricted model that poses major security risks to private and public software. On April 7, Anthropic announced the Mythos in early preview and called it a new frontier model with strikingly advanced capabilities in computer security tasks. Anthropic […]

2 mins read

FBI warns of Kali365 phishing service targeting Microsoft 365 accounts

The FBI is warning about the Kali365 phishing-as-a-service platform (PhaaS) that is used to hijack Microsoft 365 accounts by abusing OAuth device code authentication to steal session tokens and bypass multi-factor authentication (MFA). According to the FBI PSA, Kali365 first emerged in April 2026 and is distributed via Telegram channels for cybercriminals seeking an easier way […]

3 mins read