National Cyber Security Centre Finland

Finnish Transport and Communications Agency Traficom

Alerts

Microsoft 365 accounts compromised – beware of phishing
In August, the NCSC-FI received 70 reports related to Microsoft 365 account breaches. After the summer holiday season ended, the number of cases has risen significantly, and at present, organisatio...
Alert1/2025
Severity class
Severe
Published 17.09.2025 13:35

Weekly review of the National Cyber Security Centre Finland (NCSC-FI) - 42/2025

Published 24.10.2025 15:21

This week we highlight the end of support for the Windows 10 operating system, the EU’s new Instant Payments Regulation and scam calls made in the name of NCSC-FI. The Cyber Security Nordic fair is...

Weekly review of the National Cyber Security Centre Finland (NCSC-FI) - 40/2025

Published 23.10.2025 16:17

This week we discuss denial-of-service attacks and their impacts. We also discuss the Bulletproof Hosting phenomenon as an enabler of criminal activity. We briefly outline an exercise in which secu...

Weekly review of the National Cyber Security Centre Finland (NCSC-FI) - 41/2025

Published 15.10.2025 13:18

This week we are highlighting the importance of applying critical updates. If critical vulnerabilities are found in devices, their updates must not be delayed unnecessarily. Criminals regularly exp...

Weekly review of the National Cyber Security Centre Finland (NCSC-FI) – 39/2025

Published 29.09.2025 22:01

This week we are highlighting the scam call blocking initiative, which won the 2025 crime prevention award and has significantly reduced the number of scam calls in Finland. We also explain what ma...