The encrypted messaging app Signal -- which has lately seen an “uptick in usage in Eastern Europe” -- is pushing back on social media rumors that the app has been compromised and hacked.

“Signal is not hacked,” the company tweeted. “We believe these rumors are part of a coordinated misinformation campaign meant to encourage people to use less secure alternatives.”

Signal said it is seeing rumors being pushed in the form of forwarded messages. The message attributes a warning that Signal has been compromised to a “senior government official.”

But, the company said, there is no senior government official saying that, and the app is not compromised.

“This is false and Signal is not under attack,” it tweeted.

-ABC News’ Luke Barr

Forty senators signed a letter that was sent to President Joe Biden on Monday night requesting that he use his executive authority to grant Temporary Protected Status to the estimated 29,500 Ukrainians with nonimmigrant visas in the U.S.

“Some of them are tourists, some of them are students, some are on work visas, but often times they expire and they’re supposed to return to their home countries at the moment of expiration,” Sen. Dick Durbin (D-Illinois) said.

Durbin, Republican Sen. Rob Portman and Democratic Sen. Bob Menendez wrote and sent the letter, which included signatures from mostly Democratic senators as well as Republican Sen. Kevin Cramer and Independent Sen. Angus King.

The letter noted that TPS can be granted to nationals from another country if returning to their home country would “pose a serious threat to their personal safety because of ongoing armed conflict.”

Ukraine “clearly meets the standards for TPS,” the letter read.

The designation does not make a national from another country eligible for U.S. citizenship, and when TPS designation is terminated, the immigration status of a person from that country returns to what it was prior to the designation, the letter noted. It only allows eligible nationals to remain in the United States legally until the TPS designation ends.

“That, to me, is a way to give them some peace of mind,” Durbin said.

-ABC News’ Trish Turner

The Walt Disney Company will not be releasing any new movies in Russia due to its invasion of Ukraine.

"Given the unprovoked attack on Ukraine and the tragic humanitarian crisis, we are pausing the release of theatrical films in Russia, including the upcoming 'Turning Red' from Pixar," the company wrote in a statement released on Twitter. "We will make future business decisions based on the evolving situation."

Disney is also working with NGO partners to provide urgent humanitarian aid for the refugee crisis, the company wrote.

The Walt Disney Company is the parent company of ABC News.

Russian forces deliberately fired upon civilian areas in Kharkiv in eastern Ukraine, President Volodymyr Zelenskyy alleged in an address Monday.

"Today, Russian forces brutally fired on Kharkiv from jet artillery," Zelenskyy said. "This is clearly a war crime."

Zelenskyy described the bombarded neighborhoods as "peaceful residential areas" with "no military facility."

"Dozens of eyewitness accounts prove that this is not a single false volley, but deliberate destruction of people," Zelenskyy said. "The Russians knew where to shoot. There will definitely be a tribunal for this crime, international. This is a violation of all conventions. No one in the world will forgive you for killing peaceful Ukrainian people."

Oksana Markarova, Ukraine’s ambassador to the U.S., accused Russia of using a vacuum bomb, or a thermobaric weapon, amid their attacks, which is also a war crime, she said.

"They used the vacuum bomb today, which is actually prohibited by Geneva convention, so you know the devastation Russia is trying to inflict on Ukraine is large," Markarova said during a meeting with the U.S. House of Representatives Ukraine Caucus on Monday afternoon.

It is a war crime to deliberately target civilians or civilian infrastructure is a war crime, including the use of cluster munitions that groups such as Human Rights Watch and Amnesty International say they've confirmed Russia has used.

-ABC News’ Conor Finnegan, Mariam Khan and Christine Theodorou