Egidio
Case file · August 23, 2026

Solimut Mutuelle de France: national ID, bank details and payroll claimed, unconfirmed

The hacker "misere" claims 1.24 million insured-member records at Solimut Mutuelle de France: national ID numbers, IBANs and payroll data. Not confirmed by the insurer.

⚠️ Claimed by a hacker, not confirmed by Solimut. No public statement from Solimut Mutuelle de France confirming this leak was found at the time of writing. This case file documents a very large-scale claim over particularly sensitive data — not an established fact.

The numbers

1.24M
Insured-member records claimed by the hacker "misere."
Claim reported, not confirmed by Solimut.
770,467
Bank accounts (IBAN/BIC) claimed.
Claim reported, unconfirmed.
1.38M
Records containing a French national ID number (NIR) claimed — data that cannot be changed after a leak.
Claim reported, unconfirmed.
1.08M
Payroll declarations claimed, in addition to health-insurance data.
Claim reported, unconfirmed.

Timeline

CLAIMED
August 22, 2026
The hacker "misere" publishes a claim on a criminal forum covering several databases attributed to Solimut Mutuelle de France: national ID numbers, identities, contact details, IBAN, BIC, professional information and payroll data of insured members and other people registered in the systems.
UNCONFIRMED
Since
The hacker details the claim: 1,244,445 insured-member records, 770,467 bank accounts, over 1.38 million records with national ID numbers, and over 1.08 million payroll declarations. Authenticity, exact origin and the real number of unique individuals affected remain to be independently confirmed. No public confirmation from Solimut has been identified to date.

🆔The combination that raises concern: health, banking and payroll

What sets this claim apart from other health-insurer leaks documented here (MGP, Compte Asso) is the claimed combination of three data categories at once: national ID, bank details, and payroll data. If genuine, it would allow building a near-complete administrative and financial profile of a person — far beyond a simple address or email.

What it changes for you

If you are or were insured with Solimut Mutuelle de France, your national ID number, bank details and payroll data could be in this claim — pending confirmation. The main risk is administrative identity theft or wire-transfer fraud relying on real details from your file. See From Leak to Scam.

🔒 A national ID number cannot be changed: stay vigilant long-term against any solicitation citing this number, even months after this claim. No legitimate organization will ask for it by email or phone for "verification."

Frequently asked questions

Is the Solimut Mutuelle de France leak confirmed?

No, not to our knowledge: it's a claim by the hacker "misere," with no public confirmation from the insurer.

What data is claimed?

Insured-member records, bank accounts, national ID numbers and payroll declarations.

Why is the national ID number particularly sensitive?

It cannot be changed after a leak, unlike a password, and enables lasting identity theft when combined with banking data.

📌 Last checked: August 23, 2026. Verifiable information to report: contact@egidio.app.

Related reading

Cite this page Egidio — The Threat Laboratory, "Solimut Mutuelle de France: national ID, bank details and payroll claimed, unconfirmed," egidio.app/en/laboratoire/solimut-mutuelle-nir-iban-breach/. Licensed CC BY 4.0.

Free to reuse, including commercially, with attribution. Reuse terms.