This time last week, an online attack brought chaos to Ukraine’s banks, hospitals and government, before spreading worldwide. The evidence suggests that money was not the aim – the real intention was disguised. Could it be a sign of something more serious to come?
BBC: The day a mysterious cyberattack crippled Ukraine
This photo taken on June 27 in Kyiv shows a view of banking machine of Privat Bank reading "Sorry for technical reasons, cash is not possible". Wave of cyberattacks that began in Ukraine on June 27 was wreaking havoc on government and corporate computer systems as it spread to Western Europe and across the Atlantic.