Russian hackers used malware planted on Android mobile devices to steal money from domestic bank customers using fake banking apps.
The group is known as 'Cron', and now is in custody. They were planning a major attack on other European bank customers and European leaders before their arrest.
According to the reports compiled by cyber security firm Group-IB which is investigating the case with the Russian Interior Ministry said that the hacking group tricked the Android users into downloading malware via fake mobile banking applications, as well as via pornography and e-commerce programs.
After downloading the malaware into the phones, it blocked any incoming messages or notification from banks on transactions made. As a result users were not aware of any kind of money transfers until they checked later.
The hackers had planned to attack other big European banks including France's Credit Agricole, BNP Paribas, and Societe Generale.
While Google has blocked this app, but being the open OS it is easy for hackers to find ways to bypass firewall and insert malicious malwares.