Cyberslacking

Sometimes back i saw somewhere in the TOI that these days companies are getting quite stringent about cyberslacking......i haven't heard this word before....may be my vocab is not up to date...after googgling this word came to know that a bit of chatting or checking your mails within the company is an issue...well don't know what's the harm in it,if a person updates himself on personal front apart from the work...
yes, but if it's an addiction and you are too much into it that's an issue else I feel it's OK....i was reading somewhere that cyberslacking kills productivity....i feel the other way round...you work better when you know what's all happening around.