Front Page: NCSC-FI
Front Page: NCSC-FI

Data breach means the unauthorised use of an information system. It is a serious crime. Personal information ending up in criminal hands can be a source of great concern. On this page we have collected information on data breaches in general, and also give instructions on what you should do if you suspect you have been the target of a data breach. Here you can also find answers to frequently asked questions. Keep up with information regarding the case from trusted sources. Additionally, remember that not all of the information circulating on social media is true. Please do not spread rumours or share personal information.

Where can I get information?


Information about the City of Helsinki data breach

  • You can find more information about the situation on the website of the City of Helsinki at (External link).
  • The City of Helsinki customer service for victims of the data breach: Mon–Fri 8.00–18.00 tel. +358 9 310 27139 or
  • Helsinki Crisis emergency services: Mon-Sun 24 hours a day, tel. +358 9 310 44222.

Data leak help in the service

Instructions published by the authorities in the service for those affected by a data leak: (External link) (External link)

These instructions guide you in what you should do if your personal information has ended up in the wrong hands. The instructions advice the victims of data breaches and leaks and help you if you have been the victim of an identity theft or have lost your passport or identity card. 


Where can you call if a data breach worries you?

Helsinki Crisis emergency services, Mon– Sun 24 hours a day, tel. +358 9 310 44222

MIELI ry Crisis Helpline, Mon– Sun 24 hours a day, tel. +358 9 2525 0111

Frequently asked questions on data breaches

الترجمات التي تُنتجها مدينة هلسنكي إلى اللغة العربية والصومالية والروسية.

Переводы на арабский, русский и сомалийский языки подготовлены муниципалитетом Хельсинки.

Turjumaadda qoraalka ah ee magaalada Helsinki ay soo saarto ee ku qoran af carabiga, af soomaliga iyo af ruushka.

Translations into Arabic, Somali, and Russian produced by the City of Helsinki