A

Confirmed breach

ADDA data breach

Country being checked · adda.io

A breach of ADDA was added to Have I Been Pwned’s breach database on 23 November 2025. It affected 1,829,314 accounts. Exposed: Passwords and logins, Email addresses, Phone numbers and Names. The breach began on 24 March 2025, 244 days before it was reported.

Status

Confirmed breach

People affected

1,829,314 accounts

Reported

23 November 2025

Breach began

24 March 2025

Time to tell

244 days (the median in California’s notices over the last year: 154 days)

What was exposed

• Passwords and logins
• Email addresses
• Phone numbers
• Names

Sources

• Breach database · 23 November 2025 · 1,829,314 accountsHave I Been Pwned

Breach databases are read by code. · Corrections and changes

If ADDA had your data

1. Look for ADDA’s own notice or letter: it should say what of yours was involved. Keep it.
2. Change your ADDA password, and the same password anywhere else you use it. Turn on two-step sign-in.
3. Expect scams that use your details: calls, texts or emails pretending to be ADDA, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

• Spot the scams that use leaked data →
• If your password leaked →
• What to do after a data breach →

Email me if ADDA has another breach

Alert me

One email to confirm first. We use your address only for this alert, and one click deletes it.

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.