Google announced last month the first ever collision generated in the SHA-1 cryptographic hashing algorithm. Or to paraphrase it – SHA-1 is not secure anymore. Truth be told, theoretical flaws in the algorithm were known for a long time. And this is why Secure Group has already moved on to SHA-2 for the implementation of Off-the-Record (OTR) encryption in our proprietary chat client, Secure Chat. But what does SHA-1’s demise mean for cryptography and security?