Visa Europe began suspending payments to WikiLeaks on December 7, 2010.  The company stated that it was awaiting an investigation into « the nature of its business and whether it is contrary to Visa`s operating rules, » although this was not detailed.  In exchange, DataCell, the IT company that allows WikiLeaks to accept credit and debit card donations, announced a lawsuit against Visa Europe.  On December 8, the group Anonymous carried out a DDoS attack on Visa.com, and drove the site to Earth.  Although Norway-based financial services company Teller AS, which had ordered Visa to investigate WikiLeaks and its fundraising organization Sunshine Press, found no evidence of misconduct, Salon said in January 2011 that Visa Europe would « continue to block donations to the secret spilling site until it completes its own investigation. »  Visa Europe Ltd. was an association and cooperative of more than 3700 European banks and other payment service providers that operated Visa brand products and services in Europe. Visa Europe was a completely separate company from Visa Inc. which had gained independence from the Visa International Service Association in October 2007, when Visa Inc. became a publicly traded company on the New York Stock Exchange.  Visa Inc. announced on November 5, 2015 its intention to acquire Visa Europe and create a single global company.
 On 21 April 2016, the agreement was amended in response to reactions from the European Commission.  The acquisition of Visa Europe was completed on June 21, 2016.  On January 13, 2020, Plaid announced that it had signed a final agreement that will be taken over by Visa for $5.3 billion.   The transaction was twice as high as the company`s last Series C valuation of $2.65 billion and is expected to close within the next 3-6 months, subject to regulatory review and closing conditions. The BofA itself (like all other U.S. banks at that time) was unable to expand directly into other states due to federal restrictions that were only lifted in 1994. .