Skype Me

my friend once told me that sometime people don't realise when they access an Internet it means that they are connecting to the world, he/she is going to publish or share any information even confidential things to the people around the world. It is somehow make this life easier and no boundary indeed but the bad news is the  raise
of a new form of criminality... how many people are aware with the computer security hacker ? 
me, myself I never even think that I am insecure when Iam using Internet... have u ?
The fact is hackers are getting smarter and smarter nowadays, their skill to crack the computer are impressive... seriously some friends of mine confessed that they can clean-up my credit card [tempting hehehe] or even crack national security system!and if u do online banking u should be more careful, seriously... 
that's what my friend keep telling me... these hackers, they have an ability to rob a big bank- let say in the UK- merely by sitting in their room in Bangladesh, with coffee and ciggy and in the next two hours they become billionaires! 
These recent days I feel insecure with my Skype account, and that is because many stranger from all over the world
say HI to me out of sudden... and it makes me think, "what the f**k, who the hell r u" yeah of course I'm ignoring
these pshyco yet it makes me think somehow, that once we access an internet we really open ourselves to the world! Back then in 1998, when at the first time I became an Internet addict, i was so excited of having a chat
through internet [can't even remember what was the name] I stayed-up all night in front of my PC, chatting with
new people from here and there... and I was addicted! I didn't feel I was insecure... well think when I was younger
I was too busy socialize hehehehehe... and now I don't feel fine getting a HI from stranger... Somehow, I always
think, how about if this person is a pervert u know... that kind of thing, maybe it is because I've seen many bad things instead of sincerity in this crazy world... plus when you are adult, why u say HI to a stranger ? u know what
I mean ?? In the other hand I realise that this internet has now became a social utility, to connect people without
border... that's the reason why I use Skype, merely to talk with my friend overseas, cheap and cheery.
Less and less people now have a time to socialize, and internet is somehow connected them to the world outside..
that's the beneficial of it, i guess.. cos that's what I feel too hehehe...yet for me, think I prefer to maintain
the relation I have had instead of making a new one with pshyco strangers.