Regions Financial became the third bank this week to experience issues with its online presence after being targeted by a group claiming to have ties to Islamic terrorism.
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The Alabama-based company told FOX Business it is "experiencing an Internet service disruption that is intermittently impacting our customers’ ability to access our website or use our online banking service." The bank added that it is "working quickly to resolve this issue and regret any inconvenience customers may be experiencing."
The Izz ad-Din al-Qassam Cyber Fighters took credit last month for disrupting the websites of America's two biggest banks: J.P. Morgan Chase (NYSE:JPM) and Bank of America (NYSE:BAC). This week, the group that derives its name from the armed wing of terrorist group Hamas hit Capital One (NYSE:COF), SunTrust (NYSE:STI) and then Regions (NYSE:RF) after posting specific threats on a website popular with hackers.
There is no evidence the attacks have compromised any customer information.
Security experts have not been able to link the attack to specific individuals yet, but they say whoever is behind them has a sophisticated understanding of the underpinnings of the Internet. The group has compromised at least 3,000 Web servers -- forming their own "botnet" that floods the sites with requests, according to Rodney Joffe, senior vice president and senior technologist at Neustar (NYSE:NSR), who has been monitoring the attacks.
The exploitation of Web servers as opposed to personal computers that are traditionally used has put the group at a relatively higher vantage point on the Internet, providing the attackers more horsepower with fewer resources. The group has also been rapidly making tweaks to its strategy bypass companies' defenses, according to security researchers.
Adam Shapiro contributed to this report.