Yahoo says an issue with its email servers, which has led to hundreds of spam emails being sent out, has been resolved.
Telecom said it became aware of a suspected phishing issue with its Yahoo Xtra email service yesterday.
Phishing is a tactic used by scammers to acquire usernames and passwords off unsuspecting internet users. The fraud uses what seems to be a trustworthy website or email address to gather the information.
Some Yahoo customers have reported experiencing bounced emails and noticed bogus messages were being sent to their contact list after opening any suspicious items.
ONE News received dozens of the emails, and people reported similar problems on messageboards and Twitter.
Any Yahoo customers still experiencing problems are being advised to change their email password.