The fast-spreading cyber extortion campaign has infected more than 300,000 computers worldwide
WannaCry has infected more than 300,000 computers since Friday
The attack includes elements that belong to the U.S. National Security Agency
Authorities claim there has been no loss of data as they had back up
Criminals are aware their emails contain revealing clues, and they try to cover their tracks
Earlier, cyber attack caused disruption including stoppages at several of auto alliance's sites
Ravi Shankar Prasad said there was no serious impact in India and the NIC is working fine
ransomware crippled Britain's hospital network and computer systems in several countries
Security experts warn there is no guarantee that access will be granted after payment
New versions of worm were expected, and extent of damage from Friday's attack was still unclear
In England, 48 National Health Service trusts fell victim, as did 13 NHS bodies in Scotland
The CERT-In has suggested some anti-ransonware measures
Ransomware attack has affected over a dozen countries
Govt & private cybersecurity experts were pressed into service to decrypt the affected systems