ANSSI 2025 Report: Fewer Alerts but Higher Stakes for Infrastructure

Why these numbers matter for your roadmap

If you are managing infrastructure or a software supply chain, a 22% drop in general security alerts sounds like a win. However, the latest data from ANSSI reveals that while the volume of noise is decreasing, the precision of attacks is increasing. For builders, this means the era of simple automated defense is over; the focus must shift to protecting deep architectural dependencies.

ANSSI handled 3,586 security incidents this year. The decrease in alerts doesn't suggest threat actors are giving up. Instead, it indicates a move toward stealthier, high-impact operations that bypass traditional detection systems. If you aren't auditing your third-party integrations and internal access controls, you are missing the real threat vector.

How is the threat profile changing?

The report highlights that cyber-espionage and strategic disruption are replacing simple ransomware as the primary concern for state-level interests. For startups and mid-sized tech firms, this means you are no longer just a target for your data, but a potential gateway into your larger enterprise clients.

• Supply Chain Weakness: Attackers are increasingly targeting the tools developers use daily, from CI/CD pipelines to open-source libraries.
• Strategic Espionage: There is a rise in long-term persistence where attackers remain dormant in a system to monitor data rather than encrypting it for immediate profit.
• Critical Infrastructure Focus: Energy, transport, and healthcare sectors remain the top targets for high-severity incidents.

We are seeing a professionalization of the threat. Attackers are using zero-day vulnerabilities more frequently and with better coordination. This requires a shift from reactive patching to a Zero Trust architecture where identity is verified at every single touchpoint.

What should your team prioritize now?

The 2025 data suggests that the most successful defenses weren't the ones with the biggest budgets, but the ones with the cleanest hygiene. Complexity is the enemy of security. When you add layers of abstraction to your stack, you create blind spots that automated tools often miss.

Standardize your deployment environments. The report shows that fragmented systems—where different teams use different security standards—are the first to fall during a coordinated campaign. Centralizing log management and enforcing strict IAM policies are the most effective ways to lower your risk profile without slowing down your shipping velocity.

1. Audit your Service Accounts and remove any with excessive permissions.
2. Implement mandatory multi-factor authentication for every internal tool, no exceptions.
3. Review your incident response plan; a 22% drop in alerts means you might be out of practice when a real crisis hits.

Watch your dependency graphs closely over the next quarter. The trend toward supply chain infiltration isn't slowing down, and the next major incident will likely come from a trusted vendor or a nested library you haven't looked at in months.