Criminals Hide in Apps Police Can’t Crack

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Raphael Nnadi

Criminals Hide in Apps Police Can’t Crack

Danish police face major hurdles gaining access to encrypted messaging apps used by criminals and terror suspects. Despite court orders, platforms like Telegram and Signal often refuse to cooperate, leaving investigations stuck. 

Police Struggle with Encrypted Communication

When investigators in Denmark pursue serious crime, they can request access to chat messages if they suspect coordination or planning of criminal acts. Yet once these conversations take place on encrypted platforms such as Signal or Telegram, obtaining evidence becomes nearly impossible.

Even with valid court warrants, Danish police often hit a wall trying to retrieve data from these companies. The problem has grown as organized groups increasingly rely on secure apps to plan violent crimes. Since late 2023, at least 47 people have been arrested in Denmark for committing or preparing severe offenses on demand, resulting in more than 264 years of combined prison sentences and one life term.

Because encrypted services refuse to compromise their business model, authorities must find alternative ways to gather proof. These challenges echo broader privacy debates across Europe, connected to controversies such as the Danish chat control plan that has stirred EU discussions about security versus individual privacy.

Tech Firms Missed High-Level Meeting

Government officials in Copenhagen also feel the frustration. Justice Minister Peter Hummelgaard and his Nordic counterparts invited major tech companies, including Google, Meta, Snapchat, and TikTok, to a security meeting. Telegram and Signal were also asked to attend, but both companies declined the invitation, deepening tensions with law enforcement.

While Telegram has shown minor signs of cooperation, Signal remains completely closed. According to police accounts, most violent plots are arranged on Signal, while Telegram operates more like a digital marketplace for criminal services. Investigators want both platforms to reveal who is behind anonymous profiles, yet the companies rarely comply.

Some services assist partially, but in most cases, access to key evidence remains out of reach. This lack of collaboration slows investigations into violent gangs and terror-related activities, leaving police to depend on digital traces or device notifications discovered by chance.

Example: Attack on the Israeli Embassy

The latest courtroom example underscores this struggle. Earlier this month, two young Swedish men went on trial in Copenhagen for a grenade attack on the Israeli Embassy in Hellerup on October 2, 2024. One suspect had fired shots at the Israeli Embassy in Stockholm the day before.

Prosecutors presented chat logs from Signal showing conversations between the 18‑year‑old suspect and an alleged mastermind known as “Rimfrost.” However, investigators could only access incoming messages stored as phone notifications. Outgoing messages remained inaccessible because Signal’s encryption excludes them from device backups or cloud storage.

The case highlights what Danish and Swedish authorities describe as a near-impenetrable barrier between law enforcement and encrypted platforms. Without broader cooperation, crucial digital evidence continues to slip away.

Growing Concerns Over Digital Secrecy

Signal and Telegram promote strong end-to-end encryption, promising users that only the sender and recipient can read messages. Users can also enable automatic message deletion after set time periods, making documentation even harder to capture.

While privacy advocates defend these systems, police departments warn that growing numbers of extremists and crime networks exploit them to plan attacks or recruit new members online. A Danish documentary about “gang child soldiers” recently revealed how violent groups use social media and private chats to groom teenagers for criminal activity.

These developments raise further questions about the balance between digital freedom and public safety, echoing ongoing privacy battles across Europe.

Limited Cooperation from Platforms

DR, Denmark’s national broadcaster, contacted both Telegram and Signal for comment. Telegram responded that it cooperates with Danish and EU authorities within legal boundaries, handling valid requests and participating in official meetings to fight illegal content. Signal did not reply.

The ruling in the Israeli Embassy case is expected next year, but the broader issue remains unresolved. As encrypted communication grows mainstream, Danish authorities argue that criminal justice systems cannot function effectively without at least partial access. Whether Europe finds a legal path that protects both privacy and security is still an open question.

Sources and References

The Danish Dream: Danish chat control plan sparks EU privacy debate
The Danish Dream: Security in Denmark for foreigners
DR: Ingen tager telefonen, når politiet efterforsker sager om lejesoldater

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Raphael Nnadi Writer
New Danish Media Faktor.dk Champions Green Transition

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