At the start of 2016, there were 3.4 billion global smartphone subscriptions, according to this year’s Ericsson Mobility Report. They expect that number to reach 6.3 billion in the next five years. Meanwhile, tablet ownership has topped the 1 billion mark, eMarketer estimates, and they expect that number to continue climbing as well.

But only a small percentage of these mobile consumers consistently back up data on their devices – even though, as this year’s Acronis World Backup Day Survey shows, one in three consumers has suffered digital data loss.

While security neglect by users is a familiar story to IT professionals, the reasons why consumers fail to back up mobile device files are many, including lack of security awareness or concern, impatience with the process, uncertainty about how to back up files, an aversion to spending more money, and previous unsuccessful experiences.

Sometimes there are valid technological hurdles. For example, while iPhones have built-in backup capabilities through the iCloud app, they require a stable Internet connection to back up and restore files. On a slow connection – still a common problem because many homes lack broadband – the length of time it takes to complete the backup to iCloud may be so frustrating to device owners that they don’t let the process finish or even bother backing up at all.

Further, to recover even just a single photo or contact that’s been accidentally deleted, iPhone users must restore all of the device’s content and applications to the last backup. Again, some device owners simply may decide it’s not worth it.