Cyber activists associated with Anonymous and TeaMp0isoN hackers have combined forces to launch Operation Robin Hood.
An online communiqué claims the operation will return money to those who have been cheated by an unjust system dominated by the 1%.
"We will take credit cards and donate to the 99% as well as various charities around the globe. The banks will be forced to reimburse the people," the newly formed p0isAnon alliance stated.
"We are going to take what belongs to us. The Banks have thrown people out on the streets with corrupted actions. When the poor steals, it's considered violence, but when the banks steal from us, it's called business."
p0isAnon claims it has "already taken" Chase, Bank of America, and CitiBank credit cards with "big breaches" across the map.
"We have donated thousands to many protests around the world. We have donated thousands to the homeless and other charities. Our government has fallen short in many ways. It's time for the people to step up.
"We are not afraid of the Police, Secret Service, or the FBI. We are going to show you banks are not safe and take our money back. We are going to hit the true evil while not harming theirs customers and helping others. We are not only starving the banks but are ready to start the attack. We have come to take the 99%'s money back. We are not asking permission," the group added.