People search Instructure data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 Instructure-linked incident, with headline counts up to 275M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Instructure breach history matters
Instructure operates in Technology (United States). Across indexed rows, recurring themes include ransomware and extortion, credential theft and social engineering, unverified actor or scraping claims. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2026 — Instructure Canvas - cyberattack involving user identifiers and messages; ShinyHunters claims 275M users
Unverified claim — treat actor counts cautiously. Instructure disclosed a May 2026 cybersecurity incident affecting Canvas-related systems after disruption to tools relying on API keys. ShinyHunters claimed roughly 3.65 terabytes from on the order of 275 million users—including private messages between students and teachers—while Instructure said exposed data appeared to include names, email addresses, student ID numbers, and user messages, with no evidence at that stage that passwords, dates of birth, government identifiers, or financial information were involved Exposed categories include Names, email addresses, student ID numbers, messages among users, and alleged Salesforce/user data per ShinyHunters claim. BreachHistory cites approximately 275M+ affected records in this row. See the instructure-canvas 2026 record and canonical BreachHistory entry.
Patterns and analysis
- Ransomware and extortion — appears across multiple Instructure catalog entries; prioritize controls that address this class of failure.
- Credential theft and social engineering — appears across multiple Instructure catalog entries; prioritize controls that address this class of failure.
- Unverified actor or scraping claims — appears across multiple Instructure catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Review OAuth app permissions and revoke unused third-party integrations.
- Step 5: Bookmark the Instructure company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/instructure · Latest: instructure-canvas2026.
Sources: BreachHistory catalog (1 row for Instructure), company and regulator disclosures cited in individual breach records.