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Interruptions in online services are common and usually harmless

Information security now!

Denial-of-service (DoS) attacks against organisations’ websites and online services are common. In practice, they take place all the time, everywhere. Measures are also taken to prepare for the attacks, and attacks are successfully prevented each day. You may notice DoS attacks if the website of a bank or a healthcare organisation is unavailable, for example. Websites may also be temporarily down because of other disturbances or maintenance work.