Repercussions from last year's data Target data breach continue to plague the corporation. CEO Gregg Steinhafel, who was employed by Target for 35 years, just stepped down months after hackers managed to obtain personal information from 70 million customers and credit card numbers from 40 million. The retail chain's CFO will take over Steinhafel's position until a replacement is selected. 

The company's Board of Directors released a statement that commended Steinhafel's response to the data breach. "He held himself personally accountable and pledged that Target would emerge a better company," according to the board's statement. 

The company's massive security flaw is just one of several that have affected big corporate names as businesses struggle to stay one step ahead of hackers and ever evolving data systems. Just a month after the Target data breach, 4.6 million Snapchat users found that their names and phone numbers had been publicly released by hackers who reportedly wanted to reveal the company's security flaws.

The latest and perhaps largest data security issue is the discovery of the Heartbleed bug that left user information vulnerable across the web. Web providers reacted to the security flaw, but many websites remain vulnerable. Here's a tool to check whether the websites that store your personal information are vulnerable to Heartbleed.

So far, few leaders have been held accountable for failing to recognize or notify users of their websites' vulnerabilities.