SHA-1 is about to die. The costs of hacking this venerable hashing algorithm have dropped down (thanks to high-end graphics processors) to the point of it being very vulnerable.
Solution: Make sure your stuff is SHA-2 or SHA-3 compatible.
IOW:
- Hardware compatible with SHA-2/SHA-3
- Server software updates supporting SHA-2/SHA-3
- Client software support for SHA-2/SHA-3
- Custom application code support for SHA-2/SHA-3
http://thehackernews.com/2015/10/sha-1-collision-attack.html