Did yOu knOw thAt even when yOur devices Are Off, they cAn still be hAcked, trAcked, Or hAve dAtA stOlen?

Sophisticated attackers can exploit residual electromagnetic signals, firmware vulnerabilities, or even remotely activate components—putting your sensitive information at risk, even when you think your laptop or phone is safe.

BLCKR provides the missing layer of protection.

Our advanced electromagnetic shielding pouches, sleeves, and bags create a physical barrier—like a portable Faraday cage—around your devices. This blocks all wireless signals, prevents unauthorized access, stops location tracking, and also protects against electromagnetic pulse (EMP) attacks. With BLCKR, “off” truly means secure." 

 Manipulation and malicious code

(sabotage and intrusion)

• Spyware injection: An attacker can exploit a device's dormant state to install rootkits or other malicious software deep within the system. This code then activates when the device is powered on, giving the attacker full control, the ability to eavesdrop on communication, or log keystrokes.

• Operating system manipulation: By gaining access to turned-off devices, attackers can alter the operating system's code, for example, by bypassing security controls or creating backdoors that they can use later to gain access, even if you have the latest security updates.

• Permanent pamage (bricking): In extreme cases, unauthorized access can lead to permanent damage to the device's firmware, rendering it unusable.

 Physical access and security bypass

• Encryption bypass: Even if your device is encrypted, some advanced attacks can exploit residual data or weaknesses in the encryption implementation to access information, especially if the device isn't completely powered down.

• Device cloning: An attacker can clone your device's identity (e.g., IMEI number) to carry out fraud or other illegal activities that appear to originate from you.

• Initial access point for larger attacks: A turned-off, but vulnerable, device can serve as a first bridge into a larger network. If your work laptop is subjected to such an attack, it could lead to the compromise of the entire company's network.

For individuals and organizations in high-stakes environments—like R&D, finance, law, government, defense, and critical infrastructure—that means the risk of data breaches, espionage, surveillance, or device sabotage doesn’t end when you power down.
 

Executives, journalists, and anyone carrying sensitive data are also exposed to these invisible threats.

What Are The Risks When Devices Are Off?

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Data exfiltration (information theft)

• Eavesdropping on residual signals: Even when a device is turned off, certain components can still emit weak electromagnetic signals. An unauthorized person with the right equipment can pick up these signals and reconstruct data recently used on the device. Imagine someone sitting next to you on the train "reading" your latest email.

• Access to stored data: Many devices have memory modules that retain information even without power. With specialized tools, an attacker can physically access these memory chips and copy sensitive information like passwords, bank details, personal photos, or corporate documents. This is especially relevant if the device is lost or stolen.

• Remote access via firmware vulnerabilities: Some devices have backdoors or vulnerabilities in their firmware(the embedded software) that can allow remote access even when the device is off. This can be exploited to extract data or install malicious code.​​​​