Canvas Breach Disrupts Schools & Colleges Nationwide
2026-05-09T07:23:26Z•80ed18bd6515324104fc5bc6c622c4915ef39ee15e120e41f2b5178318b013a7
DDoSGandCrabIoT-botnetMicrosoftREvilRussian-APTSharePointWindows-Defenderanti-DDoS-abusebotnetcybercrime-arrestdata-extortionlaw-enforcement-takedownnation-statepatch-managementransom-demandrouter-exploitservice-defacementtoken-harvestingvulnerabilitieswiperzero-day
What happened
Multiple high-impact cyber incidents and vulnerability disclosures were reported: a large data-extortion attack against Canvas that defaced the login page and threatened data from ~275 million students and staff across ~9,000 institutions; a Brazilian anti-DDoS firm allegedly enabled a botnet used to attack ISPs; a senior “Scattered Spider” member pleaded guilty for SIM/text-based phishing intrusions; Microsoft’s April Patch Tuesday fixed 167 vulnerabilities (including a SharePoint Server zero-day and a publicly disclosed Windows Defender issue called “BlueHammer”) while Chrome and Adobe also/
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- krebs_on_security
- Record identifier
- 80ed18bd6515324104fc5bc6c622c4915ef39ee15e120e41f2b5178318b013a7
- Enrichment time
- 2026-05-09T07:23:26Z
- AI-assisted enrichment
- Yes
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