There has been an increase of 500% in cyberattacks since the lockdown was implemented in March. Small companies are said to be affected the most. Phishing, ransomware, malware, DDoS attacks topped the list. Govt. in collaboration with a third-party firm, CERT-In, is taking preventive measures. Last week CERT-In issued guidelines to avoid Phishing attacks. ISPs, telecom firms receive cyber alerts almost every alternate day which earlier used to be once a week.