Data breaches regularly hit third-party services - professional networks, forums, SaaS vendors - with no connection whatsoever to your own information system. If an employee's professional address appears there alongside a password still reused today, the door is open. SYAGA Leak-Express checks your exposure using recognized public sources and supports you through remediation.
A breach at a third party can become your problem, even though your own information system was never touched
A third-party service used by your employees (professional network, SaaS tool, forum) can be compromised without your own information system ever being at fault. The credentials stored there end up circulating publicly.
When a password exposed elsewhere is reused on a professional account (mailbox, VPN, remote access), the attacker only has to try it. This is one of the most well-documented compromise vectors.
A professional address exposed in an old breach can remain invisible for years, until it serves as the entry point for a credential-stuffing attack or a targeted phishing campaign.
An exposure check never means testing your actual passwords against your live services: it compares your addresses against breach data already made public, without ever attempting to log in on your behalf.
A check carried out by our auditors, not an automated self-service scan
You provide the domains and professional addresses to check (key accounts, management, IT). No other data is required: we never ask for a real password.
Each address is checked against data breaches already made public, using recognized reference services such as Have I Been Pwned, complemented by manual OSINT research across relevant open sources.
For each exposure identified: which third-party service caused the breach, when it happened, what kind of data is involved (email only, password, other data), and the criticality level for your organization.
Concrete, prioritized recommendations: rotating the credentials concerned, enabling MFA, targeted awareness for exposed employees, and points to flag to your DPO where the context warrants it.
New breaches are made public continuously, by third parties entirely outside your organization. A periodic re-check can be set up on quote, at whatever cadence suits your organization.
A qualified, sourced report, honest about what still needs validation by your DPO or CISO
The list of addresses checked and, for each one, the known public breaches it appears in, if any.
Each raw result is analyzed, not just copied over.
Concrete actions, ranked by urgency, not a list of good intentions.
The report helps qualify the situation, without ever deciding on your behalf.
Every claim is sourced, never stated from memory.
Delivered in an editable format, reusable by your team.
A method built on legal texts and recognized public sources, not on in-house interpretations
Notifying a personal data breach to the supervisory authority without undue delay and, where feasible, within 72 hours of becoming aware of it.
Communicating the breach to the individuals concerned when it is likely to result in a high risk to their rights and freedoms.
ANSSI's IT hygiene measures (authentication, account management, awareness) structure the remediation recommendations in the report.
The check relies on breach data already made public, including Have I Been Pwned, a widely used reference service - never on unauthorized access to your accounts.
Scope depends on the number of addresses and domains to check. A quote is established after a first conversation.
An initial control of your exposure
The full check with an action plan
Several checks over time
Exposure is never a final state
New data breaches are made public continuously, by third parties entirely outside your organization. A check performed today guarantees nothing for tomorrow: a periodic re-check is offered on quote, at whatever cadence suits you.
Tell us the scope (domains, key addresses), and we will get back to you with a custom quote.
Free: your score + your gaps. The detailed report and the attestation: 499 EUR excl. VAT, only if you decide to.
contact@syaga.eu Review the method