In its crackdown on foreign internet services, Russia has also blocked the encrypted chat service Signal due to alleged legal violations. Signal does not comply with the legal measures necessary to combat terrorism and extremism, the responsible authority Roskomnadzor said in Moscow on Friday. Throughout the day, complaints from Signal users in Russia claiming that the messenger service was unavailable increased. Portals like Sboj.rf, which collect reports of disruptions, reported some 2,000 complaints. Signal was developed in the United States and is valued by its users as a particularly secu…