President Barack Obama learned last August that Russian President Vladimir Putin was directly involved in the cyber campaign designed to defeat Hillary Clinton and elect Donald Trump, the Washington Post reported Friday.

Obama was given intelligence of Putin’s specific instructions, the Post said. In the months afterwards, Obama debated dozens of options for deterring or punishing Russia. Obama was worried about being seen as attempting to influence the election. The story reveals that Obama, at the end of his administration, sets out a plan to start to deploy cyber implants in Russian electronic infrastructure that could be used in the future.