Arara Message email delivery service data breach
Add to my breach checkMade public
What leaked8
Hard to replace
- Mobile number
- Home or delivery address
- Email address
- Employer
- Other profile data
Permanent
- Date of birth
- Full name
- Gender
- Date of birthonly where the client company registered it
- Mobile numberphone number · type not stated; only where the client company registered it
- Home or delivery addressonly where the client company registered it
- Employercompany name in the customer data of five client companies
- Full nameonly where the client company registered it
- Genderonly where the client company registered it
- Other profile datamember number and records of where mail was sent; only where the client company registered it
To-dos4 · about 50 min in all
- Know the scam pattern: calls and texts that cite these leaked detailsLimits harm from: scam calls, phishing messages
- Turn on instant transaction alertsHelps you notice: scam calls
- Remove your address and phone from public profiles and tighten SNS privacyLimits harm from: visits or contact at home
- Use an authenticator app or passkey instead of SMS codesLimits harm from: SMS code theft
What happened next22 events
- Undetected 2 events1 day · Back to latest
- Response 20 eventsNo individual notice on record · show events
- RemedyNone on record
- PenaltyNone on record
- DisputesNone on record
Undetected: 2 events
Back to latest- Confirmed unauthorised access to part of its systems and took the server off the network
- Intrusion began
- Company
- Arara Message
- When it happened
- –
- Company detected it
- Made public
- Notice
- Leak confirmed
- Affected
- about 77 million email addresses taken from the servers of up to about 380 client companies, including some that may have been taken · under review; one person can have several addresses, so not a count of people; operator's second report, November 2, 2026; a further 3,386,187 addresses from the shared environment in the first report, which may overlap
How the facts developed
- Second report: about 77 million email addresses, with names and other member data for some client companies, taken from up to about 380 client companies' servers; 3,386,187 addresses from the first system; up to about 7.13 million phishing emails posing as card companies were sent from the service between 28 and 30 October
- First report: about 3.01 million email addresses taken from one system, through a web server vulnerability
Sources
- アララ company notice, (opens in a new tab)checked November 3, 2026
- アララ company notice, (opens in a new tab)checked November 3, 2026