Commonwealth Bank suffers nationwide IT outage

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Commonwealth Bank suffers nationwide IT outage

Update: Switch failure causes day of grief.

Commonwealth Bank customers have been unable to transact for several hours today owing to an unexplained outage.

Update 1:50pm: CBA Tweeted that all services "including ATMs, NetBank and EFTPOS" have now been restored.

Update 5:15pm: iTnews understands that the outage was caused by a switch failure inside one of CBA's Sydney data centres.

The bank has confirmed it is experiencing issues, but declined to pinpoint the cause.

“The Commonwealth Bank is currently experiencing system problems. We have identified the issue and we are working to restore services as a priority. We apologise for any inconvenience caused,” a CBA spokeswoman said in a statement.

Customer complaints about instability in online banking services began surfacing on social media just after 8:30am:

Customers also complained of issues with ATMs, EFTPOS and in-branch services. The CBA said it had no information on availability of these services as this story was published.

CommSec took to Twitter to confirm its website was also down.

Businesses affected

A number of businesses and government organisations have reported that their services have been affected by the outage:

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