For example, some hacks will target banks, seeking to gain access to internal networks to siphon off money. 2009 Global Payment Hack Back in 2009, five men – four Russians and one Ukranian – managed to hack into several major company networks, including NASDAQ, 7-Eleven, Carrefour and Global Payment. In order to gain access to the networks, the hackers looked for vulnerabilities in the SQL code of each company’s network. Once they had found customer data, the hackers would sell it on the dark web, charging $10 for each stolen American credit card number and associated information, $15 for a Canadian credit card number and $50 for a European credit card number. While one would suspect that the hackers targeting the banks would be looking to simply steal money from customer accounts, the Global Payment hackers knew that they could multiply their ill-gotten gains by acting as middle men. JPMorgan Hack, 2014 Back in 2014, four men used a variety of methods, from brute force credential-guessing to old-fashioned confidence tricks, to gain access to the networks of JPMorgan Chase, online stock brokers, financial news sites and even software companies.