The MMO studio confirms its 'systems and databases are separate from PSN's'.
Sony Online Entertainment has assured fans that the theft of personal information on PlayStation Network does not include specific data collected from its customers.
"We wanted to update you on the status of our examination of the SOE system intrusion we announced last week," SOE director of community relations Linda Carlson wrote on the DC Universe forum. "We have been conducting a thorough investigation and, to the best of our knowledge, no customer personal information got out to any unauthorised person or persons."
Carlson added: "We are continuing that investigation and monitoring the situation carefully; should the situation change, we will - of course - promptly notify you."
A later post added: "SOE's systems and databases are separate from PSN's."
Despite the security of the SOE accounts, the PSN downtime has prevented its customers from getting online - something the provider is hugely apologetic about.
"We apologise for any inconvenience players may have experienced as a result of the recent service interruption. As a global leader in online gaming, SOE is committed to delivering stable and entertaining games for players of all ages.
"To thank players for their patience ... we will be hosting special events this weekend across our game portfolio, including a Double Station Cash day on Saturday, April 30th.
"We are also working on a 'make good' plan for players of the PS3 versions of DC Universe Online and Free Realms."
Further details will be available soon.