Cyber criminals have used the O2 outage as the springboard for a new phishing campaign targeting the network provider's customers.
V3 received a number of reports from readers claiming to have been targeted by the scam on Thursday.
"On top of [the network outage] the phishers have started. As a non-O2 customer already had an email today from O2 supposedly with a link to login to my O2 account to activate new security measures to get back online," wrote one V3 reader.
"Follow the link to its source and it's a site hosted in China. So for some O2 customers who might in desperation trying to login, it will be bad upon bad delivered from this outage."
At the time of writing V3 could not verify the authenticity of the claims and O2 had not responded to requests for comment.
Despite the lack of official word from O2, security vendors have argued such a scam would run in line with cyber criminals current attack patterns.
"We've become used to spammers and phishers piggy-backing all kinds of newsworthy stories - natural disasters, major sporting events, gossip about the latest celebrities and more. Their aim is to cash-in on such stories by trying to get people to respond to their spam messages," Kaspersky researcher David Emm told V3.
"It seems that the recent O2 problem has become the latest springboard for cybercriminals' activities. They're sending out messages claiming to be from O2: they ask customers to click on a link and log in to their account to activate new security measures that will get them back online.
"Unfortunately, the link doesn't take you to O2's site, but to a fraudulent site created by the cybercriminals, where they capture your login details."
The O2 network outage occurred on Wednesday and Thursday, leaving a number of smartphone users without 3G. The led to a massive public backlash against O2 and has led to questions over the readiness of the UK's mobile infrastructure for the Olympic Games.
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