On Wednesday night Telia was able to state they had “prevented” the disruption.
“It affected our home page, but it was also hard for some of our customers to surf, use digital TV and make phone calls over broadband, and mobile internet was also hit to some extent”, the company says.
Over five million Swedes use Telia for essential services including telephone, TV and mobile connections. The Swedish state owns over a third of this company.
The head of operations at Telia, Peter Kjellberg, says his company was an indirect victim of the attack, which was aimed at gaming companies.
In a press release Telia says the attack started on Tuesday night between 10 and 10:45 pm. It is described as an attempt to overload the servers in a DDOS attack.
A hacker group calling itself "Lizard Squad" claimed responsibility for the attack. The group is said to have targeted the online game servers of Electronic Arts (EA). This same group has reportedly earlier targeted other online game networks.
News agency TT reports the attacks hit Telia's DNS that connect servers with computers.
The disruption continued for 24 hours and escalated into Wednesday night, until Telia was able to state at 10 pm that it had halted the attacks. It had successfully defended itself from the attacks.
Telia says it is likely they will be target of similar attacks in the future.