Know-how
Good numbers, bad numbers
A number of users and administrators are still unsure about the causes and effects of the problems in the Debian Linux project's OpenSSL library. We help you understand how all this came about [--] and how you can assess your personal risk. more…
A pocket guide to OpenSSL
Debian's debacle with unsafe OpenSSL keys is having repercussions. SuSE, Red Hat and even Windows may be in danger. To make things worse, test tools do not work reliably, and some users lock themselves out during updates. more…
Hands-on
Vista's Integrity Levels, Part 2
Only Internet Explorer normally uses the new integrity levels under Vista. Using tools already included, the integrity levels can also be applied to other programs such as Firefox to make the system even more secure. more…
Basic security for PHP software
Private blogs and forums that use PHP scripts are a popular target for attacks due to their many inherent security holes. However, by not resigning yourself to using your provider's unsafe standard PHP settings you can usually avoid trouble. more…
Products
USB stick with PIN code
Corsair's Padlock provides PIN code protection against unauthorised access. more…
Heise SSL Guardian
An error in the Debian Linux distribution has generated numerous certificates that are child's play to crack. Nonetheless, many servers still use such weak certificates. The heise SSL Guardian warns you when it detects one. more…
