The Islamic State in Iraq and Syria (ISIS) is trying to get ahead of the hacking collective Anonymous and blasting them as "idiots" after they declared cyber war on the terrorist group after last Friday’s deadly attacks in Paris.

Shortly after Anonymous made its announcement, ISIS distributed a list of tips to its followers in an attempt to help them fend off the digital onslaught, according to several reports.

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The pointers range from basic advice — don’t open links unless you know the source — to more complex guidance on using a private Internet connection and changing your IP address “constantly.” An IP, or Internet Protocol, address is the number assigned to a device connected to the Internet.

The guidelines were distributed through the Khilafah News channel, an unofficial news outlet for ISIS, and using Telegram, an encrypted chatting app.

Anonymous is in the middle of a cyber campaign to uncover and shut down ISIS-affiliated websites and social media accounts. On Tuesday, the team orchestrating the attacks, OpParis, said it had already claimed 5,500 Twitter accounts.

ISIS warned its followers not to respond to direct messages on Twitter from people they don’t know. It also told them to avoid conversations with unknown people on Telegram, “cause there are many glitches in telegram and they can hack you by it.”

The list also warned ISIS members to avoid using the same name for their email and Twitter handle.

“This mistake cost many,” it cautioned.

The release also mocked Anonymous, calling the group “idiots” and questioning the anarchist collective’s ability to achieve anything tangible with its cyber crusade.

“All what they can do” is hack Twitter accounts and emails, the message said.

Anonymous previously went after ISIS after the attacks on the satirical French newspaper Charlie Hebdo in January.