Hackers launched a ‘coordinated attack’ on a number of US banks this month. The FBI is exploring the possibility that Russian hackers, backed by the Kremlin, might have launched the attack in retaliation against US sanctions over the military conflict in Ukraine. But its extremely difficult to attribute an internet attack to a particular country, let alone tell the difference between an attack conducted by a pizza-loving hacker who happens to be on the payroll, and a hacker who is in the pocket of an organised criminal gang.”]
Source: https://grahamcluley.com/jpmorgan-banks-hacked-russia/