A Massive Hidden Telecom Network Near the U.N. General Assembly Was Just Dismantled by U.S. Secret Service

Micah Hanks·

Secret Service United Nations

Welcome to this edition of The Intelligence Brief… This week, the U.S. Secret Service revealed it had dismantled a massive hidden telecom network near the United Nations, which investigators say could have crippled New York City’s cell service, jammed 911 calls, and triggered chaos during the U.N. General Assembly. In our analysis, we’ll be looking at 1) how agents uncovered more than 300 SIM servers packed with over 100,000 SIM cards within 35 miles of the U.N., 2) why officials warn the system was capable of sending 30 million texts per minute and potentially blacking out cell towers, 3) growing suspicions of links to nation-state actors and organized crime groups, and 4) what the takedown reveals about new vulnerabilities in the invisible infrastructure that keeps major cities connected.

Quote of the Week

 “It can’t be understated what this system is capable of doing.”

– Matt McCool, Special Agent, U.S. Secret Service NY Field Office

RECENT NEWS from The Debrief

U.S. Secret Service Unveils an Unsettling Discovery

This week, it was revealed that the U.S. Secret Service had quietly dismantled a vast hidden telecom network in Manhattan, which investigators say would have been capable of crippling cell service throughout New York, in addition to jamming 911 calls, and potentially flooding networks with chaos at a moment when the city was at its most vulnerable.

The existence of the hidden system came as nearly 150 world leaders made their way to New York City for the annual U.N. General Assembly.

Officials revealed that the network consisted of more than 300 SIM servers loaded with over 100,000 SIM cards, with locations stretching across a range of sites within Secret Service agents uncovered within 35 miles of the United Nations.

The discovery represents what investigators are now calling one of the most sweeping communications threats ever uncovered on U.S. soil, leaving questions about who was behind its construction and what the discovery means going forward.

A Major Communications Threat

Investigators warned this week that the secretive telecom network appeared to have been capable of potentially blacking out cellular service across large swathes of a major U.S. city that depends on such communication for everything from emergency response to counterterrorism.

The discovery was reportedly made as part of a broader investigation into telecom threats that had been aimed at senior government officials. U.S. Secret Service agents investigating in Manhattan uncovered the servers, which they said had been operating like banks of mock cellular phones capable of generating mass calls and texts, as well as overwhelming local networks.

The servers had also likely been intended for use in masking encrypted communications for criminal enterprises, possibly in coordination with state-backed actors.

Secret Service Warns of Dangerous Potentials

Matt McCool, a special agent in charge of the Secret Service’s New York field office, said that the server’s capabilities should not be underestimated, and that the cache is believed to have been able to disable cell towers in the region, preventing communication amid wide swathes of the public.

“And if you coupled that with some sort of other event associated with [United Nations General Assembly], you know, use your imagination there,” McCool said this week.

“It could be catastrophic to the city.”

Few Details on Any Plans or Purpose

Currently, investigators have not released any specific information about whether the actors behind the network have been identified, although they say there is presently no known threat involving plans that might have impacted New Yorkers.

It has, however, been suggested that the network may likely have been linked to “nation-state actors” for use in sending encrypted communications with organized crime groups and other criminal organizations, which might include terrorist organizations.

Current indications further revealed the possibility that the network was intended to continue growing to an even greater capacity before its discovery. Entering facilities where the servers were housed, agents reportedly discovered the architecture comprising what McCool called a multimillion-dollar organized criminal enterprise, which could potentially have delivered up to 30 million text messages per minute.

If left intact, blackouts similar to those experienced during the September 11, 2001, attacks or the Boston Marathon bombing might potentially have ensued, due to network collapses resulting from a shutdown activated at any time chosen by the operators of the server network.

The full extent of the discovery remains unclear as investigations remain underway, although McCool said that it would be “unwise” to think that similar networks wouldn’t exist in other cities throughout the United States. Still, the threat to New Yorkers is currently under control.

“The U.S. Secret Service’s protective mission is all about prevention,” Secret Service Director Sean Curran said in a statement this week following the revelations about the network, adding that “this investigation makes it clear to potential bad actors that imminent threats to our protectees will be immediately investigated, tracked down, and dismantled.”

That concludes this week’s installment of The Intelligence Brief. You can read past editions of our newsletter at our website, or if you found this installment online, don’t forget to subscribe and get future email editions from us here. Also, if you have a tip or other information you’d like to send along directly to me, you can email me at micah [@] thedebrief [dot] org, or reach me on X: @MicahHanks.

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