​​​On the second day of Pwn2Own Ireland 2026, security researchers collected $232,500 in cash awards after exploiting 45 unique zero-day vulnerabilities. [...]

The owner of ransomware remediation company MonsterCloud has been charged with allegedly defrauding ransomware victims by secretly paying their attackers for decryptors while claiming to use proprietary technology to recover encrypted data. [...]

The FBI is warning that FortiBleed attacks are still ongoing, targeting exposed Fortinet FortiGate firewalls and SSL VPN gateways and locking out legitimate administrators. [...]

Hackers obtained unauthorized HTTPS certificates for several Google domains and hijacked domains in the country-code top-level domains (ccTLDs) for Ghana, American Samoa, and Sierra Leone after compromising third-party operators and modifying authoritative DNS records. [...]

Microsoft announced that it will add.msix and.msixbundle attachments to the list of blocked attachments in Outlook Web and the new Outlook Windows client starting next month. [...]

Hackers are exploiting stored cross-site scripting (XSS) vulnerabilities in two unrelated WordPress plugins, Ninja Forms and WPC Product Bundles for WooCommerce, to install backdoors and create rogue admin accounts. [...]

On the first day of the Pwn2Own Ireland 2026 competition, security researchers hacked the Samsung Galaxy S26 twice and earned $388,500 after exploiting 32 zero-days. [...]

Atlassian is warning customers of a critical vulnerability, tracked as CVE-2026-21589, that can be exploited for arbitrary file-access in multiple self-hosted Data Center products, including Confluence, Jira, and Bitbucket. [...]

UK fashion retailer ASOS confirmed a data breach Tuesday after hackers sent unauthorized push notifications through its mobile app while claiming to have stolen customer data from the company's Snowflake environment. [...]

A new campaign targeting ad account managers uses fake ChatGPT, Gemini, Claude, and Perplexity sites that steal login credentials and multi-factor authentication (MFA) codes through browser-in-browser attacks. [...]

RMM platforms give MSPs privileged access across customer environments, making their security controls critical to limiting risk. Acronis outlines eight controls MSPs should test when evaluating RMM software, from patching and privileged access to recovery and tenant isolation. [...]

The Wikimedia Foundation says rogue OpenAI agents made unauthorized Wikipedia edits and may have been partially responsible for a May outage. [...]

Over the weekend, Japanese publishing giant Nikkei disclosed that unknown attackers recently breached two employee email accounts and used one to send thousands of phishing emails. [...]

A former core infrastructure engineer at an industrial company headquartered in New Jersey was sentenced to 32 months in prison for locking thousands of devices on his employer's network in a ransomware-style attack. [...]

Hackers are actively scanning for a Rejetto HFS weak signing key vulnerability, tracked as CVE-2026-61500, that allows session forgery, account takeover, and remote code execution (RCE). [...]

Italy's Data Protection Authority (GPDP) has fined IQVIA €7 million ($7.8M) over poor data-processing practices that the agency says could have put roughly one million patients at risk of data exposure and de-anonymization. [...]

Denmark's Central Population Register (CPR) is warning of a data breach that exposed the personal information of approximately 8.8 million registered individuals. [...]

Dell warned customers to patch a critical vulnerability in the System Update (DSU) command-line interface (CLI) deployment tool as soon as possible. [...]

South Korea's Financial Services Commission (FSC) held an emergency meeting following a series of cyberattacks targeting financial institutions in the country. [...]

tenfold has added shared content governance and real-time event auditing to its free Community Edition for organizations with under 150 users. The new features help teams manage Microsoft 365 sharing and investigate suspicious identity activity. [...]

The U.S. Department of Justice has announced the arrest of the alleged developer of Ploutus malware, used to steal millions of dollars in ATM jackpotting attacks across the United States. [...]

Google has now suspended submissions to its Open Source Software Vulnerability Rewards Program (OSS VRP) after being flooded by AI-generated reports. [...]

Citrix has released emergency updates for a new NetScaler denial-of-service vulnerability tracked as CVE-2026-88779 that has been exploited in zero-day attacks, with researchers investigating whether it can also be exploited for remote code execution. [...]

A suspected ShinyHunters hacking group member known online as "Rey" has reportedly been detained in Jordan and is cooperating with the FBI to help locate other members of the extortion group. [...]

The Technical University of Denmark (DTU) says information belonging to up to 200,000 users may have been exposed after hackers accessed its identity and access management system and downloaded a large amount of data. [...]