Some of Russia's surveillance tech leaked data for more than a year Security researcher finds that some of Russia's SORM wiretapping equipment had been leaking user data August 30, 2019 https://www.zdnet.com/article/some-of-russias-surveillance-tech-leaked-data-for-more-than-a-year/
Another leak: Documents reveal how Russia taps phone companies for surveillance A data leak exposes SORM surveillance at Russia's top telco September 18, 2019 https://techcrunch.com/2019/09/18/russia-sorm-nokia-surveillance/ UpGuard: Telecommunications Breakdown: How Russian Telco Infrastructure was Exposed