There were several tweets posted via the S1ege and Scrub Twitter handles about the exploits of the hacking group.
On 13 May, Bank of France was hit by a DDoS attack, as tweeted by S1ege; the next day Ghost Squad hackers and S1ege tweeted about bringing down Bank of Kathmandu, Bank of Nepal, Central Bank of Chile, Central Bank of Kuwait and the National Bank of Philippines.
In a related tweet, S1ege claimed the National Bank of Philippines was targeted in retaliation to the arrests of the Comelec hackers, who have been accused of breaching Philippines' Commission on Elections website and leaking millions of voters' records online.
These were originally tweeted from yet another account speculated to be affiliated with Anonymous hackers that goes by the handle "@Banned Offline".
While the NY stock exchange was reportedly down for four hours, Scrub claimed that Union Bank of Cameroon was down for over 48 hours.
There is no information about the extent of damage the cyberattacks may have caused the banks.