Iran's Underground VPN Market Booms Amid Internet Blackout, Raising Surveillance Fears
As the widespread internet shutdown in Iran continues into its latest phase, a chaotic and high-risk underground market for virtual private networks (VPNs) and connection configurations has surged dramatically. This volatile space sees desperate users risking everything to get online, while operators gain unprecedented ability to monitor activity during the nationwide blackout. The situation represents a critical digital crisis where new access methods constantly emerge alongside increasing fraud and user exploitation.
Soaring Prices and Technical Complexity
The price of 'configs' – configuration files used to establish internet connections – has reached between 500,000 to 1 million tomans per gigabyte, approximately £7 to £15. Under current conditions, the challenge extends beyond merely connecting to the internet to encompass how that connection is established and the substantial risks involved. Reports from network traffic monitoring services indicate that less than 2 percent of Iran's population currently maintains internet connectivity, with a significant portion consisting of privileged users with government-approved 'white SIM cards' that face fewer restrictions.
Government spokesperson Fatemeh Mohajerani has confirmed this selective access approach, stating: "Given certain considerations, efforts were made to provide internet access to individuals who can better convey messages." The services that have managed to keep users connected no longer function like traditional, single-route VPNs. Instead, these advanced tools employ multiple pathways and communication layers to transmit traffic, allowing data to be rerouted whenever one path becomes blocked or ineffective.
Advanced Connection Methods Emerge
Over the past month, sophisticated methods have gained increasing attention among technically proficient users. These include DNS tunnelling via DNSTT and NoizDNS, 'slipstream' techniques that route QUIC traffic over DNS, HTTPS-based tunnelling with NaiveProxy, SSH connections, and encrypted DNS requests via DoH protocols. The defining feature of tools currently keeping users online is their remarkable flexibility, with some services capable of chaining multiple methods together for enhanced security.
For example, SSH connections can be layered over Slipstream, NoizDNS, or NaiveProxy to add extra encryption layers and reduce the risk of DNS leaks. Consequently, in conditions where network disruption is applied across multiple layers, these advanced tools maintain better connectivity prospects than conventional VPNs. However, most configurations sold commercially are designed for less experienced users, with providers pre-configuring setups that customers receive as simple files or access keys.
Surveillance Risks and Widespread Scams
This simplified model requires users to place significant trust in providers, who potentially possess the ability to monitor their online activity. While services using HTTPS encryption generally prevent providers from seeing specific activity details, they can still identify which services users visit. More concerning are the security compromises that can occur through configuration files, which determine traffic routing, server connections, protocols, ports, DNS request routing, and certificate verification enforcement.
Independent Persian has documented evidence of Telegram channels advertising "guaranteed VPNs" or "no-disruption configs" that actually defraud users. These scam operations typically take two forms: some accept payment without delivering any service, while others cut off access before purchased data is fully utilized. Numerous users report buying 2GB services that stop working after just one or two days, often following only about 200MB of usage, with sellers then demanding additional payment for supposedly "more stable" alternatives.
Identification Threats and Technical Detection
Security risks begin at the purchase stage, particularly when payments are made through official banking gateways using real identity details. This exposes personal and financial information to sellers, a serious concern for those seeking anonymity. As some users within Iran report receiving police text messages warning about global internet access – complete with threats of SIM card disconnection and legal action – questions abound regarding authorities' ability to identify VPN users.
From a technical standpoint, identifying VPN users is not implausible, especially when over 98 percent of users are offline and overall traffic remains extremely limited. Traffic monitoring systems can employ deep packet inspection (DPI) and traffic fingerprinting to detect certain VPN protocols. Even heavily obfuscated protocols can reveal usage patterns through traffic behavior analysis, including packet sequence and type, timing patterns, packet size and distribution, and overall traffic flow characteristics.
Monitoring systems can also infer connection nature based on structure and behavior: how connections initiate, whether packet exchange is regular or irregular, inbound-to-outbound traffic ratios, and whether consistent patterns persist over time. A common misconception among users involves believing that reputable applications alone ensure safety, while configuration files remain unimportant. In reality, configs represent crucial connection mechanisms that determine traffic routing, server selection, and applied settings.
Configuration files are not inherently dangerous like malware, but their risk lies in how they can route user connections insecurely. Untrustworthy configs may connect users to servers that log or monitor traffic, or even allow sensitive data to pass through unencrypted channels. When obtaining configurations, the source represents the most critical factor, with files from unknown or unverified channels requiring extreme caution.
