Twelve men were arrested on Friday, following an operation by the Metropolitan Police's Central e-Crime Unit, over the alleged plot which centered on a Santander branch in southeast London.
Four were charged late on Friday and appeared on Saturday at Westminster Magistrates' Court for an initial hearing. They were named as 25-year-old Lanre Mullins-Abudu, 34-year-old Dean Outram, Akash Vaghela, 27, and Asad Ali Qureshi, 35.
Eight others have been released on police bail pending further enquiries.
Source: Reuters