ANSSI launches REACTIV to counter state data breaches
Free public brief. The indicators, the detections with Splunk and KQL already written, and a Slack alert the next time this touches a vendor you run are in the app — free account, no card.
France's ANSSI stood up a rapid-response operation (REACTIV) to counter a wave of account-compromise and data-exfiltration attacks against government services.
CERT-FR published a situation report on 'REACTIV' (REponse & ACTion Interministérielle face aux Violations de données), an ANSSI-led operational capability created at the request of the French Prime Minister on 1 September 2026. The initiative responds to an intensification of cybercriminal activity involving account compromises and data breaches affecting French state administrations. Under REACTIV, ANSSI gains enhanced authority to compel ministries to take urgent protective measures within constrained timeframes and to centralise technical crisis communications for any state-related incidents tied to this threat.
The document is explicitly a point-in-time situation report reflecting ongoing investigations; no specific indicators, malware, threat actor attribution, or exploited vulnerabilities are disclosed. It complements France's 2026-2027 state cybersecurity roadmap, whose implementation the Prime Minister has ordered accelerated to durably raise the security posture of ministerial networks. For defenders in government and public administration, the key takeaway is that account takeover and data exfiltration against state services are an active, escalating concern warranting heightened monitoring of user account activity and data access patterns, alongside expectation of centralised guidance from ANSSI as incidents are further characterised.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/cti/CERTFR-2026-CTI-006
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries its extracted indicators, its detections with the Splunk SPL and Microsoft KQL already written, the actors and CVEs it names as live profiles, and the vendor research on the same campaign — the primary source the news paraphrased, cited and read directly.
It sits in a corpus of 11,395 reports from 154 sources, 2,085 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Name the vendors you run and Slack hears about the reports that touch them — about forty a week that are yours, not the four hundred that are not.
Create a free account What it costs