Serasa Experian Data Breach
Status: Confirmed
Breach Intelligence Summary
Entity: Serasa Experian · Actor: Unknown · Source: DataBreach.com / ObscureIQ intelligence
Attack: Phishing via Phishing
Timeline: Breach (Jan, 2021) · Reported (Jan, 2025) · Leak (Jan, 2025)
Exposure: 223.7M+ records · Social Security Number, Name
Status: Confirmed · Risk: High (Identity theft)
Summary
On 20 January 2021 Brazilian cybersecurity firm PSafe uncovered a dataset holding the personal records of more than 220 million people being traded on a dark-web forum instantly marking the event as the largest data breach in Brazil’s history . The leak—roughly 1 TB of compressed files—contained names dates of birth , CPF tax numbers addresses phone numbers email addresses salary ranges credit scores and even facial images. A second collection exposed data on 40 million Brazilian companies , complete with CNPJ identifiers and estimated revenues suggesting the trove was assembled from several compromised sources over many months. The threat actor posted two sample files and advertised the full package for US $40 000 in Bitcoin offering buyers a searchable web panel. Screenshots showing live CPF look-ups spread quickly across social media and mainstream outlets amplifying public outrage and drawing regulators’ attention. Because many leaked fields mirror those collected by the credit-reporting sector suspicion soon focused on Serasa Experian the São Paulo arm of global bureau Experian. In February 2021 the company confirmed it was investigating but reported “no evidence” that Serasa’s systems had been breached after a detailed forensic review by external specialists. No organisation has yet been proven liable for the compromise. Regulatory bodies reacted swiftly. Brazil’s new National Data Protection Authority (ANPD) launched a formal inquiry within days while the Senate’s Consumer Protection Commission held emergency hearings. The Ministry of Justice later opened an administrative case that could trigger multimillion-real fines under the Lei Geral de Proteção de Dados (LGPD) . In parallel the Federal Police began Operation Deepwater which evolved into “Operation Data Breach” in 2024 and led to the arrest of a suspected data broker accused of selling fragments of the archive to international fraud rings. Security analysts warn the dataset is tailor-made for identity theft phishing and synthetic-credit fraud. Unlike passwords CPF numbers and birth-dates cannot be reset leaving Brazilians exposed for decades. The incident has already accelerated multi-factor-authentication rollouts across financial institutions and pushed companies to strengthen encryption tokenisation and zero-trust architectures to meet LGPD’s “security by design” mandate.
About Serasa Experian
Serasa Experian is the organization affected by this breach. User data may have been generated through account creation, service usage, or business operations.
If you have interacted with Serasa Experian in any capacity, your data may be included in this breach.
Threat Actor: Unknown
The threat actor responsible for this breach has not been publicly identified or confirmed at this time.
- Phishing
Breach Exploitation Status
High
Status
Detected
Possible
Detected
Possible
Unknown
Indefinite (critical identifiers)
SSNs and government IDs never expire. This data can be used for identity theft years or decades after exposure.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 223.7M+ records has been identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Impact
This breach carries high risk due to the nature of exposed data fields and the scale of affected records.
- Targeted phishing referencing Serasa Experian accounts or services
- Identity theft using exposed Social Security Numbers
- Data broker enrichment and resale
Recommendations for Impacted Individuals
If you believe your information may be included:
Non-clients may request a breach impact review.
Serasa Experian account updates
Password reset requests
Verify directly through official channels.
Email compromise is often the first pivot point.
Frequently Asked Questions
In Jan, 2021, Serasa Experian experienced a data breach that resulted in the exposure of approximately 223.7M+ records containing personal information.
The exposed data includes Social Security Number, Name.
Approximately 223.7M+ records were affected based on current breach intelligence.
Yes. This breach is treated as confirmed based on data observed in breach intelligence platforms.
Data circulation has been detected across breach-sharing channels. Downstream exploitation risk exists based on the nature of the exposed fields.
Rotate passwords associated with Serasa Experian, enable multi-factor authentication on email and financial accounts, and monitor for suspicious activity.
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Corporate Accountability
Organizations that collect personal data have a duty to implement reasonable safeguards and to notify affected individuals when breaches occur.
Scope assessments may evolve as investigations continue. Users should not rely solely on early estimates when making risk decisions.
ObscureIQ Advisory
We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.
- A public-facing individual
- A high-profile executive
- A customer of Serasa Experian
- Or simply concerned about credential reuse
We can confirm whether your information is circulating and evaluate downstream threat vectors.