13 million people live in Moscow, reports CNN. But since early March the city "has experienced internet and mobile service outages on a level previously unseen." (Though Wi-Fi access to the internet is still available...) Russian social media "is flooded with jokes and memes about sending letters by carrier pigeons or using smartphones as ping-pong paddles..."[Moscow residents] complain they cannot navigate around the center or use their favorite mobile apps. The interruptions appear to have had a knock-on effect of making it more difficult to make voice calls or send an SMS. Some are panic-buying walkie-talkies, paper maps, and even pagers. The latest shutdown builds on similar efforts around the country. For months, mobile internet service interruptions have hit Russia's regions, particularly in provinces bordering Ukraine, which has staged incursions and launched strikes inside Russian territory to counter Russia's full-scale invasion. Some regions have reported not having any mobile internet since summer. But the most recent outages have hit the country's main centers of wealth and power: Moscow and Russia's second city, St. Petersburg. Public officials claim the blackout of mobile internet service in the capital and other regions is part of a security effort to counter "increasingly sophisticated methods" of Ukrainian attack... Speculation centers on whether the authorities are testing their ability to clamp down on public protest in the case there's an effort to reintroduce unpopular mobilization measures to find fresh manpower for the war in Ukraine; whether mobile internet outages may precede a more sweeping digital blackout; or if the new restrictions reflect an atmosphere of heightened fear and paranoia inside the Kremlin as it watches US-led regime- change efforts unfold against Russian allies such as Venezuela and Iran... On Wednesday, Russian mobile providers sent notifications that there would be "temporary restrictions" on mobile internet in parts of Moscow for security reasons, Russian state news agency RIA-Novosti reported. The measures will last "for as long as additional measures are needed to ensure the safety of our citizens," Kremlin spokesman Dmitry Peskov said on March 11... As well as banning many social media platforms, Russia blocks calling features on messenger apps such as WhatsApp and Telegram. Roskomnadzor, the country's communications regulator, has introduced a "white list" of approved apps... Russia has also tested what it calls the "sovereign internet," a network that is effectively firewalled from the rest of the world. The disruptions are fueling broader concerns about tightening state control. In parallel with the internet shutdown, the Kremlin has also been pushing to impose a state-controlled messaging app called Max as the country's main portal for state services, payments and everyday communication. There has been speculation the Kremlin may be planning to ban Telegram, Russia's most widely used messaging app, entirely. Roskomnadzor said that it was restricting Telegram for allegedly failing to comply with Russian laws. "Russia has opened a criminal case against me for 'aiding terrorism,'" Telegram's Russian-born founder Pavel Durov said on X last month. "Each day, the authorities fabricate new pretexts to restrict Russians' access to Telegram as they seek to suppress the right to privacy and free speech...." The article includes this quote from Mikhail Klimarev, head of the Internet Protection Society and an expert on Russian internet freedom. "In any situation when they (the authorities) perceive some kind of danger for themselves and accept the belief that the internet is dangerous for them, even if it may not be true, they will shut it down," he said. "Just like in Iran."Read more of this story at Slashdot.