Half-open redirect vulnerability in Youtube
· β˜• 3 min read
If you open any Youtube video, which has in its description a link to an external URL, you may notice that the link points to a Youtube redirection mechanism (, with the target URL being passed to it as a parameter, rather than to the target URL itself...

Looking back at September 2015
· β˜• 1 min read
Information concerning number of devices vulnerable to Heartbleed vulnerability has appeared in the news during September. Given that the existence of Heartbleed was made public almost a year and a half ago it may be surprising that the number of vulnerable devices exceeds 200.000. Affair concerning the Stagefright vulnerability (which was mentioned in the last Looking back) continued in September when Zimperium – the company which discovered Stagefright – released a proof-of-concept code which exploits the vulnerability.

Looking back at February 2015
· β˜• 3 min read
Dramatic information security incidents and news were unfortunately fairly common in February – we will shortly remember three of the most interesting ones. Most attention was probably gained by a story about an alleged theft of massive amount of encryption keys used in mobile communication from the network of Dutch company Gemalto (a major SIM card supplier) by NSA and GCHQ. The keys could be used to decrypt live communication and also, for example, remotely inject malicious code into end devices.