The cyber attack earlier this month also hit housing registers in Manchester and Bolton, with users told to monitor their bank accounts for suspicious activity.
They were also told to change any passwords that were the same as the one used to access Salford Home Search.
Salford City Council apologised after the incident, which it said came from a “vulnerability in the third party software suppliers website.”
A council spokeswoman said the software behind Salford Home Search was managed and maintained by a third party company and the issues had affected other councils nationally.
“The company has now announced that the problem has been identified and addressed, after some intensive testing,” she said.
“This means the council can start to use the software again and we will bring the website back online soon.”
