Yonéma 2024 Data Breach
Financial Services / Mobile Payments & Money Transfer / Consumer fintech platform / Senegal (West Africa)
Yonéma 2024 Data Breach
Senegalese mobile-payments platform enabling money transfers and digital payments.
Confirmed · ObscureIQ Intelligence
Breach Risk Index i
17/100
Lower riskHigher risk
Lower: limited current risk based on data value and recency.
Data Sensitivity i
StandardExposed data is largely lower-sensitivity. Standard identity-protection precautions are advised.
36KRecords
2024Year
The Breach Risk Index (BRI) is a proprietary 0–100 score rating how dangerous a breach is right now, based on how recently the data has been circulating on the dark web and how valuable it is to attackers.
Breach Summary
In November 2024, data from the Senegalese payment platform Yonéma was posted to a hacking forum and indexed by Have I Been Pwned (roughly 35,962 accounts). Exposed data included names, email addresses, phone numbers, dates of birth, encrypted/hashed passwords, and device and IP information.
Full threat analysis, exploitation vectors, and principal guidance below.
10 additional sections · verified field analysis · defensive doctrine
Querying breach corpus…
Cross-referencing exposed field types…
Resolving threat-actor attribution…
Compiling principal risk advisory…
36K records analyzed
About Yonéma
Yonéma is a Senegalese mobile-payments platform enabling money transfers, bill payments and digital transactions for consumers in Senegal and the West African region.
Why They Hold Your Data
As a mobile-payments platform, Yonéma holds customer-account records including names, email addresses, phone numbers, dates of birth, hashed passwords and device/IP information collected through registration and transactions.
Recent Developments
In November 2024 a Yonéma dataset was posted to a hacking forum and later indexed by Have I Been Pwned (about 35,962 accounts). The breach occurred around November 21, 2024.
Data Points Exposed
7 verified field types
Date of Birth High
Device Information
Email Address
Full Name
IP Address
Password High
Phone Number
Breach Impact
A payments-platform breach exposes financially-active users to credential and identity risk, and in mobile-money ecosystems the combination of phone numbers and account data heightens fraud exposure. It carries regulatory and reputational consequences in the West African fintech market.
Exploitation & Downstream Threats
• Credential stuffing against reused passwords across other platforms | • Identity verification bypass using name + date of birth combination | • SIM swap attacks where phone numbers are present | • Targeted phishing campaigns using exposed email addresses
Principal Risk Advisory
What this means for a principal
A consumer-service breach: contact and account data supports phishing, account takeover and profile enrichment. For a high-profile principal the main risk is credible impersonation and enrichment of existing exposure.
What You Should Do
- Reset any reused passwords and enable MFA on email first, then financial accounts.
- Guard against SIM-swap and vishing: add a carrier port-out PIN and verify any 'support' calls independently.
- Do not use unofficial 'am I affected' lookups; several are themselves harvesting operations.
How ObscureIQ Can Help
- Corpus confirmation: determine whether and where the principal (plus household and staff) appear in this dataset and which specific fields are exposed for them.
- Exposure mapping and footprint neutralization: cross-reference against broker-available data and suppress still-removable elements, prioritizing address and phone, since this record re-seeds broker networks.
- ThreatWatch tuned to this incident's identifiers and misuse pattern (impersonation and targeting patterns, not generic credential monitoring).
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