“GSMem: Data Exfiltration from Air-Gapped Computers over GSM Frequencies”<p><a href="https:&#x2F;&#x2F;www.usenix.org&#x2F;conference&#x2F;usenixsecurity15&#x2F;technical-sessions&#x2F;presentation&#x2F;guri" rel="nofollow">https:&#x2F;&#x2F;www.usenix.org&#x2F;conference&#x2F;usenixsecurity15&#x2F;technical...</a>