Banks have been ahead of the curve when it comes to tightening IT security and have suffered less than retailers in recent months. Increasing numbers of firms are also using online payment operator PayPal instead of taking credit card numbers themselves, reducing the amount of data they hold.
The better data is encrypted, the less serious it is when it is stolen though even some encrypted passwords can be cracked with sufficient computer power.
Other strategies involve using “honeypots” – false folders designed to look as though they contain valuable data – that can be used to mislead and even detect attackers.
The most common route in for criminals, however, is gaining control of someone else’s user profile, allowing them to sneak into networks and steal further data.
Some worry the high-profile nature of recent hacks may have actually made such identity theft easier. Security experts report an increase in “phishing” attacks – fake e-mails purportedly from major firms mentioning recent security breaches and prompting people to a dubious link to reset the password. (Reuters)