Security News

Cloudflare R2 service outage caused by password rotation error
2025-03-25 19:47

Cloudflare has announced that its R2 object storage and dependent services experienced an outage lasting 1 hour and 7 minutes, causing 100% write and 35% read failures globally. [...]

Microsoft Exchange Online outage affects Outlook web users
2025-03-19 19:34

​Microsoft is investigating an ongoing outage preventing Outlook on the web users from accessing their Exchange Online mailboxes. [...]

Week-long Exchange Online outage causes email failures, delays
2025-03-14 18:59

Microsoft says it partially mitigated a week-long Exchange Online outage causing delays or failures when sending or receiving email messages. [...]

New Microsoft 365 outage impacts Teams, causes call failures
2025-03-03 18:52

Microsoft is investigating a new Microsoft 365 outage that is affecting Teams customers and causing call failures. [...]

Microsoft links recent Microsoft 365 outage to buggy update
2025-03-03 14:37

​Microsoft says a coding issue is behind a now-resolved Microsoft 365 outage over the weekend that affected Outlook and Exchange Online authentication. [...]

US newspaper publisher uses linguistic gymnastics to avoid saying its outage was due to ransomware
2025-02-18 17:00

Called it an 'incident' in SEC filing, but encrypted apps and data exfiltration suggest Lee just can’t say the R word US newspaper publisher Lee Enterprises is blaming its recent service...

Cloudflare outage caused by botched blocking of phishing URL
2025-02-07 15:44

An attempt to block a phishing URL in Cloudflare's R2 object storage platform backfired yesterday, triggering a widespread outage that brought down multiple services for nearly an hour. [...]

DDoS attacks reportedly behind DayZ and Arma network outages
2025-02-06 16:09

An ongoing distributed denial of service (DDoS) attack targets Bohemia Interactive's infrastructure, preventing players of DayZ and Arma Reforger from playing the games online. [...]

Major GitHub outage affects pull requests and other services
2025-01-30 15:06

​GitHub is mitigating an ongoing incident causing problems with multiple services, including performing pull requests, creating or viewing issues, and even viewing repositories and commits. [...]

Microsoft investigates Microsoft 365 outage affecting users, admins
2025-01-29 18:55

Microsoft is investigating an ongoing outage preventing users and admins from accessing some Microsoft 365 services and the admin center. [...]