Russian security company Elcomsoft has upgraded a phone-password cracking suite with the ability to figure out the master device password for Research in Motion’s BlackBerry devices. The tool uses a brute-force attack to guess the smartphone password by attempting to decrypt the contents of a media card that has been removed from the smartphone. To increase the difficulty of guessing passwords, RIM recommends that users always use strong passwords. The security of mobile devices and major networked systems is tested by third party security researchers every day.
Source: https://thehackernews.com/2011/10/blackberry-security-guide-by-incident.html