Following the attack, Sony confirmed that over 101 million users have had their personal data compromised, including names, profiles, addresses and credit card details.
Sony promised to return service on May 7th but could not as the Network continued to remain unsecured.
Bloomberg says the company "boosted security for PlayStation Network and Qriocity by increasing the number of firewalls between servers and adding software to monitor intrusions and system vulnerabilities."
Sony also added a new chief information security officer.
The company says all services, in all regions, will be fully functional by May 31st.
As a compromise for the downtime, Sony is offering all users 1 free year of identity theft protection and insurance, two free PS3 games, and a free month to PlayStation Plus.