Trust in online security is falling as a result. Almost 70% of those asked in a poll said that net firms are not doing enough to protect people.
The survey of more than 1,000 people reported that 43% were not willing to hand over personal information online.Last year, a street survey found that more than 70% of people would reveal their password for a bar of chocolate.
On average, people have to remember four different passwords.
Some resort to using the same one for all their online accounts. Those who use several passwords often write them down and hide them in a desk or in a document on their computer.