Blast from the past. Here’s my Channel 2600 recording from the Next HOPE (2010):

Telephone entry systems are practically everywhere in the city. An investigation after a series of break-ins uncovered several shockingly simple bypass techniques currently used by criminals. This presentation explains how the common keypad box will grant full access to a building in under ten seconds using only basic tools. The presentation will also give details on a series of countermeasures that can significantly reduce the vulnerabilities.