WestJet, Canada's second-largest airline, is investigating a cyberattack that has disrupted access to some internal systems as it responds to the breach. [...]

Erie Insurance and Erie Indemnity Company have disclosed that a weekend cyberattack is behind the recent business disruptions and platform outages on its website. [...]

Security researchers have disclosed a new Secure Boot bypass tracked as CVE-2025-3052 that can be used to turn off security on PCs and servers and install bootkit malware. [...]

Microsoft has released the KB5060533 cumulative update for Windows 10 22H2 and Windows 10 21H2, with seven fixes or changes, including bringing seconds back to the time shown in the Calendar flyout. [...]

Today is Microsoft's June 2025 Patch Tuesday, which includes security updates for 66 flaws, including one actively exploited vulnerability and another that was publicly disclosed. [...]

Heroku is suffering a widespread outage that has lasted over six hours, preventing developers from logging into the platform and breaking website functionality. [...]

The Arkana Security extortion gang briefly listed over the weekend what appeared to be newly stolen Ticketmaster data but is instead the data stolen during the 2024 Snowflake data theft attacks. [...]

A significant supply chain attack hit NPM after 15 popular Gluestack packages with over 950,000 weekly downloads were compromised to include malicious code that acts as a remote access trojan (RAT). [...]

U.S. tax resolution firm Optima Tax Relief suffered a Chaos ransomware attack, with the threat actors now leaking data stolen from the company. [...]

The FBI is warning that the BADBOX 2.0 malware campaign has infected over 1 million home Internet-connected devices, converting consumer electronics into residential proxies that are used for malicious activity. [...]

A threat actor has re-released data from a 2021 AT&T breach affecting 70 million customers, this time combining previously separate files to directly link Social Security numbers and birth dates to individual users. [...]

Luxury fashion brand Cartier is warning customers it suffered a data breach that exposed customers' personal information after its systems were compromised. [...]

The Microsoft Authenticator app is now issuing notifications warning that the password autofill feature is being deprecated in July, suggesting users move to Microsoft Edge instead. [...]

IT management software firm ConnectWise says a suspected state-sponsored cyberattack breached its environment and impacted a limited number of ScreenConnect customers. [...]

Microsoft has released the optional KB5058481 preview cumulative update for Windows 10 22H2 with seven changes, including restoring seconds to the time display in the calendar flyout for those who previously lost it. [...]

​​Microsoft has released the KB5058499 preview cumulative update for Windows 11 24H2 with forty-eight new features or changes, with many gradually rolling out, such as the new Windows Share feature and tje Click to Do Preview. [...]

The DragonForce ransomware operation successfully breached a managed service provider and used its SimpleHelp remote monitoring and management (RMM) platform to steal data and deploy encryptors on downstream customers' systems. [...]

An Iranian national has pleaded guilty to participating in the Robbinhood ransomware operation, which was used to breach the networks, steal data, and encrypt devices of U.S. cities and organizations in an attempt to extort millions of dollars over a five-year span. [...]

A 19-year-old college student from Worcester, Massachusetts, has agreed to plead guilty to a massive cyberattack on PowerSchool that extorted millions of dollars in exchange for not leaking the personal data of millions of students and teachers. [...]