Flexible workers are putting in longer hours and paying more towards their gadgets, according to a survey that puts some of the blame on the bring-your-own-device (BYOD) trend.

Three-quarters of mobile workers who responded to the survey by iPass said they work at least five hours a week more as a result of being mobile – and 15 per cent thought they work an extra 20 hours a week.

It also looks as if workers are paying for the pleasure of BYOD. Some 18 per cent of mobile workers now pay their own smartphone bills – up six per cent year on year. The number of mobile employees who split their smartphone expenses with their employers has also increased, according to the iPass survey of 1,200 mobile workers.

But it seems that security measures haven’t kept pace. Only three-quarters of workers said their company required security features on their mobile devices, and 15 per cent of staff didn’t even have a passcode for their smartphone.

iPass said BYOD is effectively turning us into “a generation of productive workaholics”, with many workers seemingly happy to work during their downtime in exchange for flexibility in how and where they work.

However, flexible working does offer some perks. When asked how they multitask when on a conference call, workers admitted to behaviour as varied as responding to email, making dinner, housework and watching TV, and even “drying my hair”.