# CyberCerber

> CyberCerber delivers fixed-price external vulnerability assessments for Polish small and medium businesses — dental clinics, accounting firms, and aesthetic medicine practices. Plain-language PDF report in five business days. No ongoing contract. Certified staff (OSCP, CEH). Operated by VIVO Finanse sp. z o.o. (KRS 0000944301, NIP 8992914597), Wrocław, Poland, founded 2022.

## Services

- [Dental Clinic Cybersecurity](https://cybercerber.com/en/services/dental-clinics/): External vulnerability assessment for Polish dental practices. Covers patient records, X-ray systems, booking-software attack surface, email authentication, and ransomware entry points (RDP, open ports).
- [Accounting Firm Cybersecurity](https://cybercerber.com/en/services/accounting-firms/): External vulnerability assessment for Polish accounting firms. Covers KSeF e-invoicing exposure, JPK_VAT data, leaked client credentials, and domain spoofing risks.
- [Aesthetic Medicine Clinic Cybersecurity](https://cybercerber.com/en/services/aesthetic-medicine/): External vulnerability assessment for aesthetic medicine practices. Covers before/after photos, booking systems, patient health data, and GDPR breach-notification obligations.

## Free Pre-Scan

- [Free Security Pre-Scan](https://cybercerber.com/en/prescan/): Automated external pre-scan: SPF/DMARC/DKIM configuration, SSL certificate validity, open ports and services, domain breach exposure in public databases. No cost, no commitment, results within 24 hours.

## Blog

- [One Open Port: How Ransomware Gets Into Small Businesses](https://cybercerber.com/en/blog/open-rdp-port-ransomware/): Port 3389 (RDP) left open to the internet is the single most common ransomware entry point for small businesses — how attackers find it, what happens next, and what to do about it.
- [SPF, DKIM, DMARC Explained for Accounting Firms](https://cybercerber.com/en/blog/spf-dmarc-explained-accountants/): Why email authentication records matter for accounting firms handling client financial data, and how to check if yours are correctly configured.

## About

- [About CyberCerber](https://cybercerber.com/en/about/): Founder Iwo Wojciechowski (OSCP, CEH), our methodology (OWASP, PTES, CVSS), report format, and the rationale for fixed pricing over hourly quoting.
- [Terms of Service (PreScan)](https://cybercerber.com/en/terms/): Terms governing the free PreScan service. Data controller: VIVO Finanse sp. z o.o., Wrocław.
- [Privacy Policy](https://cybercerber.com/en/privacy-policy/): How CyberCerber processes personal data under GDPR.
- [Cookie Policy](https://cybercerber.com/en/cookie-policy/): Cookie usage and analytics consent (Google Analytics, Cloudflare Web Analytics).

## Contact

- Email: contact@cybercerber.com
- Contact form: https://cybercerber.com/en/contact/
- Response time: within one business day