Trend Micro posted an interesting infographic called The Risks of Posting in Social Networks that lays out the whole picture. If you’re not careful what you post, you could be subject to:
- Social engineering attacks
- Cyber bullying
- Identity theft
- Damaged reputation
- Targeted advertising
- Real world threats (such as burglary & stalking)
Besides being careful what information you post, be sure that your privacy settings are up to date and only allow those people you trust to see your posts. Anything that is visible to the public should consist only of information that does not reveal things that could be used in any of the above.