Frozen Android Phones Give Up Data Secrets

A team from Erlangen's Friedrich-Alexander University in Germany has figured out that by freezing a Galaxy Nexus to -10C and quickly connecting and disconnecting the battery the data scrambling system on Android 4.0 can be bypassed. You need a special software that the source article only attributes to this team, but the concept has been proven.

The reason for this is that:

Data fades from memory much more slowly when chips are cold which allowed them to grab the encryption keys and speed up unscrambling the contents of a phone.

The data scrambling system has been effective and created a "nightmare" for law enforcement, so this was done as a way to get around it.

This is something can also be done on PCs and laptops.

Source: BBC