On May 5, SMARSH, the parent company of messaging app TeleMessage, said the company's instant messaging app had suspended service due to a hacker attack. Last week, US President Trump's former national security adviser left office because of the app he used at a cabinet meeting. “TeleMessage is investigating a potential security incident,” a spokesperson for Smarsh, which operates the app, said in a statement.

On May 5, SMARSH, the parent company of messaging app TeleMessage, said the company's instant messaging app had suspended service due to a hacker attack. Last week, US President Trump's former national security adviser left office because of the app he used at a cabinet meeting. “TeleMessage is investigating a potential security incident,” a spokesperson for Smarsh, which operates the app, said in a statement.