The snapshot survey of 1098 men and 598 women across New Zealand, Australia and the Pacific Islands gives some indication of how our internet connected lifestyles impact on relationships.
Of the 75 per cent of respondents who were in long-term relationships, men were 2.5 times more likely to have content on their mobile phones that they would not allow their children to see.
Some 66 per cent of male respondents said they spent more than an hour connected to the internet each evening as they communicated with friends, work, browse and play games, with 26 per cent reporting email as the main reason for using their mobile device and 23 per cent saying texting and calling friends was the main reason.
However, AVG said it was worrying how many people did not use simple security on their devices.
"Our message of 'think before you click' seems to be getting some traction. Of the 28 per cent that use the same devices for work and personal use, more than a third (38 per cent) reported they are being more cautious about what they download," Mr McKinnon said.
"But it is disappointing that, with 40 per cent failing to use even the most simple protections such as passwords to lock their devices, they aren't following through with consistent security regimes."