Security

5 ATM security weaknesses

ATM security is becoming more complex, with criminals using these five attack vectors.

Photo: Adobe Stock

September 25, 2026 by Muhammad Fatir — Creative Content Specialist, ATM Link, Inc.

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This is part one of a two part series analyzing ATM security. Part two will look at solutions to these threats.

The threats against ATMs are becoming more sophisticated, as criminals continue to get big returns from removing cash from ATMs. Although traditional physical attacks still occur, criminals are diversifying their operations to target ATMs on multiple levels. Today's ATM attacks combine cyber intrusion, physical manipulation, malware deployment, and advanced fraud techniques that target both machines and customers.

As ATM technology evolves with contactless payments, mobile integrations, and connected banking systems, financial institutions and ATM operators must strengthen their security strategies to keep pace with modern threats.

This article explores the top ATM security threats in 2026.

Why ATM security is becoming more complex.

The modern ATM environment now faces threats across multiple layers:

Physical attacks.
Card data compromise.
Malware and logical attacks.
Network vulnerabilities.
Authentication fraud.
Customer-targeted crime.

Industry experts are also seeing growing concern around:

Cash trapping.
Explosive ATM attacks.
Direct memory access attacks.
Malware-based jackpotting.
Host spoofing.
Relay attacks.
Internal skimmers and shimmers.

At the same time, banks and ATM operators are managing compliance changes, operating system upgrades, and growing customer demand for faster, contactless banking experiences.

This combination is reshaping how ATM security must be approached in 2026.

ATM jackpotting

ATM jackpotting remains one of the most serious ATM security threats facing financial institutions today.

In a jackpotting attack, criminals gain physical access to the ATM and install malware or unauthorized devices that allow them to control the machine's cash dispensing function. In some cases, attackers spoof the acquirer's host system response, enabling unlimited cash withdrawals directly from the ATM.

Unlike traditional ATM fraud, jackpotting targets the ATM itself rather than customer accounts.

Common jackpotting methods include:

Malware installation.
Direct memory access attacks.
Unauthorized USB devices.
Host spoofing.
Internal network manipulation.

Older ATM systems running unsupported operating systems or outdated software are especially vulnerable.

ATM shimming and advanced skimming

Although EMV chip cards improved payment security, attackers adapted quickly through shimming techniques.

ATM shimming involves inserting a thin device containing a microprocessor and flash memory inside the ATM card reader. The device intercepts or manipulates data passing between the card's EMV chip and the ATM interface.

Traditional ATM skimming is also still widely used. In these attacks, criminals attach a scanning device over the ATM card reader slot to capture magnetic stripe data and create cloned cards.

Modern fraud techniques now include:

Internal skimmers.
Embedded shimmers.
Relay attacks.
Hidden cameras.
Wireless data transmission.

Shimmers are difficult to detect because they are hidden inside the machine rather than attached externally.

Advanced skimming methods can compromise customer card data without obvious signs of tampering.

Cash trapping

Cash trapping is an emerging ATM fraud tactic generating increasing concern in some markets.

In a cash trapping attack, criminals insert a device into the ATM cash dispensing slot that blocks bills from being presented to the customer. The ATM records the transaction as completed, leading the customer to believe the machine malfunctioned.

After the customer leaves, the criminal retrieves the trapped cash.

Here's what makes it so effective:

Difficult for customers to identify.
Leaves little visible evidence.
Often targets unattended ATM locations.
Can occur quickly in high traffic environments.

Physical ATM attacks and explosives

Physical ATM attacks remain a major security concern in 2026.

Criminals continue attempting to breach ATM safes either on site or after moving the ATM to a secondary location. Common methods include:

Brute force attacks.
Explosives.
Hook and chain attacks.
Forced cabinet entry.
Power tool intrusion.

Explosive ATM attacks are particularly concerning because they create serious risks for customers, employees, and surrounding property.

Logical and cyber vulnerabilities

Modern ATMs are increasingly connected to banking networks, making logical and cyber vulnerabilities a growing risk area.

Attackers are targeting:

ATM software.
Authentication systems.
Network communications.
Host connections.
Remote management tools.

Threats now include:

Malware attacks.
Host spoofing.
Relay attacks.
Network intrusion.
Authentication bypass techniques.

These attacks can be particular advanced as they rely on multiple criminals working together to bypass the ATM's security controls, especially on unpatched machines, or ones that use default passwords for their networks.

As ATM infrastructure becomes more connected, institutions must secure both physical hardware and digital systems. In part two, we will look at methods to prevent ATM attacks.

SecurityATM Link, Inc.

About Muhammad Fatir

From Graphic Designer to Marketing Executive, I blend creativity with strategy to drive brand growth. At Murkez Technologies, I led a rebranding initiative, increasing online traffic by 35% and boosting ROI by 20% through data-driven campaigns. With expertise in branding, content marketing, and SEO, I craft compelling narratives that connect people to brands. Passionate about innovation and analytics, I thrive at the intersection of design and strategy.

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