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Autonomous Systems: Land & Sea
8NOV

Iran's internet returns at 40%, by design

3 min read
19:26UTC

Iran's internet reached only 40 per cent of pre-war traffic by 28 May, NetBlocks reported, with Chinese-built hardware for a permanent, switchable blackout already installed.

TechnologyDeveloping
Key takeaway

Iran rebuilt its internet around a Chinese-built switch it can flip off at will.

Iran's internet reached only about 40 per cent of pre-war traffic by 28 May, the monitor NetBlocks reported, three days after President Masoud Pezeshkian's 25 May restoration order ended the longest national shutdown on record.⁠1 NetBlocks is the UK-based watchdog that measures connectivity disruptions worldwide. In practice most Iranians remain effectively offline, and those who do reconnect stay on virtual private networks, the tools that route traffic abroad to evade state filtering, expecting the next shutdown.

Mohammad Sarafraz, a member of Iran's Supreme Council of Cyberspace, confirmed that Chinese-built deep-packet-inspection hardware for a permanent, switchable blackout has been imported and installed.⁠2 Deep-packet inspection lets the state read and block traffic by content rather than crudely severing the line.

Iranians are back online inside a system that can be cut by a single decision, with the Chinese equipment already wired in. The 40 per cent figure is the visible change; the switchable hardware behind it is the durable one. Iran has compressed the timeline China used in Xinjiang, where a ten-month isolation in 2009 was followed by embedded inspection hardware, installing the architecture during the war rather than after it. The next blackout need not be an emergency dragged out for weeks. It can be a switch, and VPN use stays heavy because ordinary users assume the next cut is a matter of when, not whether.⁠3

Deep Analysis

In plain English

Iran's government shut off most of its internet on 28 February when the war started. President Pezeshkian ordered it restored on 25 May. Three days later, on 28 May, only about 40% of normal traffic was flowing, according to the monitoring service NetBlocks. Most people are still effectively offline, and those who can connect use VPNs because they expect the government to cut it again. A senior official called Mohammad Sarafraz confirmed that China supplied Iran with hardware that lets the government switch internet access on or off instantly, by region or across the whole country. So the restoration is partial by design, and the hardware to kill it again is already installed and running.

What could happen next?
  • Consequence

    China's DPI hardware converts Iran's internet kill-switch from an emergency measure requiring days to implement into a standing capability operable in seconds, permanently changing the information-control architecture regardless of any future civilian presidential order.

  • Risk

    VPN saturation at 35 to 40 million users, built during the 90-day blackout, means any future selective restoration will face an already-circumventing user base that is harder to track than a population encountering VPNs for the first time.

First Reported In

Update #112 · Treasury opens a second Iran sanctions front

TechTimes· 30 May 2026
Read original →
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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.