Sony experienced a cyber attack on April 20 that took down the PlayStation Network and Qriocity service, compromised 77 million users' private information and cost the company about $170 million.
Sony previously announced deadlines for recovery, including an announcement on April 21 that it might be "a full day or two" before PSN was restored. On May 1, Sony Executive Deputy President Kazuo Hirai promised restoration by the end of that week. Two weeks later, on May 14, the company announced the first phase of the network's resumption. And most recently, on May 30, Sony promised full restoration by the end of the week.
For the sake of Sony's integrity, we can only hope that this is the final announcement for complete resumption of its service -- it surely has a number of challenges to overcome in regaining users' trust.