# side-channel attacks

Published articles for side-channel attacks.

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## Reviving TEMPEST Attacks with an Injected Signal

DevFeed: [Reviving TEMPEST Attacks with an Injected Signal](<https://devfeed.tech/articles/reviving-tempest-attacks-with-an-injected-signal-55649.md>)

Original publisher: [Read original article](<https://hackaday.com/2026/09/20/reviving-tempest-attacks-with-an-injected-signal/>)

Author: Aaron Beckendorf

Published: 2026-09-20T23:00:06Z

Content type: article

Language: en

Sources: [Hackaday](<https://devfeed.tech/sources/hackaday.md>)

Topics: [TEMPEST](<https://devfeed.tech/topics/tempest.md>), [Security](<https://devfeed.tech/topics/security.md>), [circuit](<https://devfeed.tech/topics/circuit.md>)

Tags: [attacks](<https://devfeed.tech/tags/attacks.md>), [circuit](<https://devfeed.tech/tags/circuit.md>), [computer](<https://devfeed.tech/tags/computer.md>), [eavesdropping](<https://devfeed.tech/tags/eavesdropping.md>), [emissions](<https://devfeed.tech/tags/emissions.md>), [mixing](<https://devfeed.tech/tags/mixing.md>), [radio](<https://devfeed.tech/tags/radio.md>), [radio-hacks](<https://devfeed.tech/tags/radio-hacks.md>), [rf-modulation](<https://devfeed.tech/tags/rf-modulation.md>), [sdr](<https://devfeed.tech/tags/sdr.md>), [security](<https://devfeed.tech/tags/security.md>), [security-hacks](<https://devfeed.tech/tags/security-hacks.md>), [side-channel-attacks](<https://devfeed.tech/tags/side-channel-attacks.md>), [tempest](<https://devfeed.tech/tags/tempest.md>)

### AI overview

The article describes InjectEave, a technique that irradiates modern electronics with a tuned radio-frequency signal to induce emissions from internal antennas. Nonlinear components mix the injected and internal signals, allowing attackers to recover audio and detect device states over short distances, including through walls.

### Source excerpt

TEMPEST attacks are often the most effective way to break air-gapped security: rather than directly accessing a computer, the attacker records the system's unintended radio emissions and uses them to ...read more