The Democratic Congressional Campaign Committee (DCCC) has taken to using an encrypted messaging app called Wickr for internal communications and correspondence with the campaigns of the most vulnerable House Democrats, BuzzFeed News reported Tuesday.

The DCCC was among the organizations targeted by a Russian hacking campaign during the 2016 elections — an attack that exposed the internal documents of a handful of Democratic House campaigns.

Wickr, an end-to-end encrypted messaging software, was installed at the DCCC in June, according to BuzzFeed, and is a first for political party committees on both sides of the aisle.

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Encrypted messaging systems prevent third parties from deciphering communications and data sent using that software, meaning that only the sender and the intended recipient can view the information.

Wickr is not intended to replace email and is used to send ephemeral messages and share files.

Russia's efforts to meddle in the 2016 presidential election have been the subject of much controversy, particularly the Kremlin's alleged efforts to swing the race in favor of President Trump.

The U.S. intelligence community concluded in a report made public in January that the Russian government sought to disrupt the election by running a hacking and influence campaign that also touched the Democratic National Committee and the personal email of Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE's campaign chairman, John Podesta.

A special counsel and multiple congressional committees are currently investigating Russia's role in the election, as well as possible collusion between the Trump campaign and Moscow.