Cryptocurrency - A small walkthrough.

          Everyone must be knowing about cryptocurrency by now, atleast heard of Bitcoins. It is the currency that acts as  ransom for mostly all ransomwares available. Let's have a short walkthrough about cryptocurrency.

          Consider INR, they are issued by Reserve Bank of India and they regulate amount of currency that is in circulation, whereas these cryptocurrencies are not owned by any Government or Bank, they are decentralised.

           Ok you are telling me it is decentralised then how someone is telling i own this much bitcoin? All transactions are managed by ledgers. If you are sending money to me it will be marked in ledger. Ok who owns the ledger? There are millions of nodes (Computers) having the ledger across globe, one entry made to the ledger will be updated in all the ledgers available across globe.

           What are all the ways to own cryptocurrency?

1. You can purchase it with real money.

2. You can MINE it.

           Second choice is preferred by many.. but i am not gonna deal mining topic due to some reasons...

           Can i exchange bitcoin if i mine or buy in future to real money? Yes you can for sure unless you forget your wallet id and Government don't ban exchange services..

           Is cryptocurrency safe? Since there is no centralised party and its purely machine dependent one can't provide 100 percent safety but it is safe..

          Is there any coin other than Bitcoin? There are many many coins like Bitcoin...

         Any other doubts or comments or suggestions.. mostly welcome. Thank you

P.S: This post is to create awareness only and not to create any negative impact.

Should I know about Wannacry ?

           Its been a long time since i blogged. Time to continue again i guess due to the havoc created by the latest virus or malware or to be specific ransomware. You got it... #Wannacry Ransomware.

           Ransomware is not new to cyber world it has been there for atleast 3 years. By this time I am sure all must be knowing about working of ransomware and its impact towards data.

            If you are affected by Wannacry Ransomware.. you must be thankful since it is just first alarm for cyber warfare, make sure you are safe hereafter by making some changes. Anyhow one cant be 100 percent safe but can recover fastly.

            Steps to follow to avoid ransomware attack is as follows

1. Backup! Backup! Backup!... Oh wait dont copy data in internal hard disk. Do it with external HDD

2. Get a paid.. you heard paid.. not cracked Antivirus

3. Update! Update! .. Update your Windows or any applications you use. If you know Microsoft released patch for this vulnerability before itself those who failed to update are the victim.

4. No one in cyber world is so generous to give you free offers or say 1 crore through mail which you are not even aware of.

             I know this post is too late for wannacry ransomware but one can prevent future attacks if they take actions now. 

P.S: This post is to create awareness only and not to be missued.