The website of Indian computer emergency response team, a part of the Department of Electronics and IT that monitors India’s cyber space for external attacks, was down on Tuesday evening for at least three hours.

According to security experts that spoke to BusinessLine , the website was down because of a massive Distributed Denial of Service attack, a technique commonly used by hackers to flood a website with requests sent from hundreds of thousands of compromised computers from around the world.

CERT-In is the national nodal agency for responding to computer security incidents as and when they happen. The agency is tasked with the collection, analysis and dissemination of information on cyber incidents and even taking emergency measures for handling cyber security incidents.

While CERT-In issues guidelines, advisories, vulnerability notes and whitepapers relating to information security practices, procedures, prevention, response and reporting of cyber incidents, the agency seemed unable to get back quickly after Tuesday’s attack, with the website coming back online intermittently.

Whether the attack just brought down the website or even compromised some elements of the CERT-In servers is yet to be seen.

CERT-In did not respond to BusinessLine queries seeking details of the attack and who could likely be behind it.

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