MUMBAI: India was the third worst hit nation by ransomware WannaCry as more than 40,000 computers were affected even though no major corporate or bank reported disruption to their activities raising doubts whether these entities are disclosing attack at all.Corporate world was back on its feet across the globe after more than 2 lakh computers were affected by the virus and the follow-up attack did not materialise as feared, said cyber security experts.“There is a lack of transparency in India, in-spite of a mandatory requirement for banks and listed companies to disclose cyber-attack, however, very few banks and companies do that," said Tushar Ajinkya, Partner, DSK Legal. "We have seen earlier that black hats would mainly attack and deface Indian websites but now the objective is mainly money.”WannaCry ransomware which affected operations at the US health care system and French car maker Renault, appears to have had less impact on corporate India’s operations.Although there were fears that India’s antiquated systems may be vulnerable, the damage so far appears to be negligible. But absence of major hit does not mean that all the systems are safe from future attacks."In our research we found that a large percentage of attacks globally by WannaCry happened in India and the country was third on the total number of attacks," said Altaf Halde, Managing Director, Kaspersky Lab , South Asia."Most of the Indian organisations are still vulnerable to the attacks since the sophistication of these cyber threats is going up and many of Indian organisations including private and public sector still use outdated operating systems which make it easy for the cyber attackers to compromise the systems."ET had on Tuesday reported that many Indian companies after being attacked by WannaCry, had even paid the hackers.An independent research by Quick Heal Technologies, a cyber-security firm, shows that about 48,000 computers were attacked by the ransomware WannaCry, with most incidents in West Bengal.In last year India has seen at least three sophisticated ransomware attacks on Indian companies and banks. The first one Lucifer happened last year which locked computers of banks and pharmaceutical companies. At least three companies and banks had paid up money in bitcoins to unlock their systems, said people familiar with the event.This year in January another ransomware by the name of Lazarus had attacked Indian companies. Even the central bank has lamented about the poor reporting of cyber attacks.