People search Whise data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 Whise-linked incident, with headline counts up to 40.9M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Whise breach history matters
Whise operates in Technology (Belgium). Across indexed rows, recurring themes include 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 — unverified ChimeraZ leak; ~40.9M CRM email logs + contacts (EU real-estate)
Unverified claim — treat actor counts cautiously. Unverified leak claim — June 23, 2026. Actor ChimeraZ posted what they describe as Whise.eu CRM data: ~15.8 GB JSON with ~40.85 million lines including ~37.7 million email logs and several million contact records spanning European real-estate leads. Sample fields include recipient names, emails, IP addresses, phone numbers, and property search preferences. Whise had not publicly confirmed at catalog time. BreachHistory indexes the actor-cited line count as unverified. Exposed categories include Actor-claimed ~40.85M lines dominated by ~37.7M email-sending logs plus ~3M+ contact records: names, emails, phones, IPs, timestamps, property search criteria, marketing-consent fl. BreachHistory cites approximately 40.9M+ affected records in this row. See the whise-chimeraz 2026 record and canonical BreachHistory entry.
Patterns and analysis
- Unverified actor or scraping claims — appears across multiple Whise 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 Whise company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/whise · Latest: whise-chimeraz2026.
Sources: BreachHistory catalog (1 row for Whise), company and regulator disclosures cited in individual breach records.