The news come after the National Cyber Security Centre of Lithuania on July 30 suggested not using the Yandex.Taxi app - which is a competitor to similar services such as Uber and Taxify - seeing as it requires access to a lot of confidential data, with the collected information being stored on servers controlled by a Russian company.
"We've seen that, even as concerns companies operating in the private sector, Russian authorities and security services have instruments to obtain information and gain data," said Cert.lv vice head Varis Teivāns.
Defense Ministry rep Kaspars Galkins told Latvian Radio that all ministry employees follow safety protocols, and that if it's found out that they are using an app that may cause security risks it's deleted and the device checked.
Yandex.Taxi has operated in Rīga since March and in Tallinn since May. It started operating in Vilnius in July.
In summer, the European Parliament invited residents not to use Kaspersky Lab products. A number of countries, including the US and the UK, had previously banned their governments from using the anti-virus software amid concerns it was vulnerable to foreign government meddling.