The Post says the UAE planted a false story that sparked the current crisis between Qatar and several Arab countries.
The Post report yesterday was quickly decried as "false" by the Emirati Embassy in Washington.
The Post cites unnamed US intelligence officials as saying that senior members of the Emirati government discussed the hacking plan on May 23.
The agency claimed it had been hacked. But Saudi Arabia, the UAE and other Arab countries blocked Qatari media and later severed diplomatic ties.