Cybersecurity researcher Jeremiah Fowler recently discovered and reported to ExpressVPN about an unsecured database containing data belonging to Brazil’s Health Surveillance Information System, known as SISVISA.
The data exposed included, but was not limited to:
- Over 102,000 documents (~79GB of data), representing a significant and wide-scale security vulnerability.
- Sensitive PII, including names, CPF/CNPJ numbers, contact details, and physical addresses, with the potential to directly impact individuals’ privacy and safety.
- Regulatory and compliance records, including inspection reports, health surveillance documentation, permit applications, and backup files, heightening the risk of institutional and legal repercussions.
You can read the details here: https://www.expressvpn.com/blog/brazil-sisvisa-data-exposed/.
Facial recognition database exposed 9 million images
Posted in Commentary with tags Express VPN on August 19, 2026 by itnerdRecently, cybersecurity researcher Jeremiah Fowler discovered a database containing roughly 9,042,977 facial images totaling 450.2GB, in a research conducted in collaboration with ExpressVPN. The database, which appeared to be linked to ClarityCheck, a US-based reverse image search and identity verification service, was publicly accessible without password protection or encryption.
The exposed database contained:
You can read Jeremiah’s full findings on the ExpressVPN blog here: https://www.expressvpn.com/blog/clarity-check-data-exposed/
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