PlayStation in United States has been a popular target of hackers for April 2011 . Sony network was shut down in years when hackers stole information of 77 M people . Former Sony employees are suing the company for failing to protect their privacy . Jeff Kingston , a professor of Asian Studies at Temple University in Tokyo says the attack reveals lax cyber-security among Sony 's ranks . Analyst says attack reveals lax cyber-security among Sony 's ranks .
PlayStation in United States has been a popular target of hackers for April 2011 . Sony network was shut down in years when hackers stole information of 77 M people . Former Sony employees are suing the company for failing to protect their privacy . Analyst says attack reveals lax cyber-security among Sony 's ranks .