Posting things on the Internet can be harmful or expose people to malicious attacks. Some information posted on the Internet persists for decades, depending on the terms of service, and privacy policies of particular services offered online. This can include comments written on blogs, pictures, and websites, such as Facebook and Twitter. It is absorbed into cyberspace and once it is posted, anyone can potentially find it and access it. Some employers may research a potential employee by searching online for the details of their online behaviors, possibly affecting the outcome of the success of the candidate.