Word of the Day: air gapping

Word of the Day: Daily updates on the latest technology terms

Word of the Day Daily updates on the latest technology terms | February 3, 2019 air gapping Air gapping is a security measure that involves physically isolating a computing device or network and preventing it from establishing an external connection. Air gapping is often used to protect critical SCADA systems from attack, including those that support the military and industrial power industries.   Air gapping can also aid in recovery efforts. For example, if a company's network is hit by a ransomware attack, but the company used air gapping as part of their 3-2-1 backup strategy, they will have an offline copy of the latest backup to use for recovery and not have to pay the ransom.   To prevent unauthorized data extrusion through electromagnetic or electronic exploits, there is often a specified amount of space between the air gapped system and outside walls and between its wires and the wires for other technical equipment. The U.S. National Security Agency TEMPEST project provides detailed recommendations for how to set up air gapping as a security measure.   While systems that are air gapped are typically used to protect critical systems and data, attackers have found a way to circumvent those protective gaps and gain access to the systems to covertly exfiltrate data from them. Continue reading... Today's Takeaway "Businesses no longer use tape as their primary target for backup, but they do still use its air gapping capabilities to keep data out of reach of cyberattacks." - Christophe Bertrand Related Terms SCADA tape library data exfiltration side-channel attack zero tolerance acoustical infection Stuxnet ransomware ransomware as a service ransomware recovery Tech Accelerator USB Thief A new type of stealth malware called USB Thief can reportedly infect air-gapped systems without leaving any signs behind.   aIR-Jumper Researchers in Israel developed a proof-of-concept exploit that uses security camera lights to hack an air-gapped network.   Powerhammering Researchers also showed how a power cable could enable hackers to steal data from air-gapped computers. Writing for Business A ________________ is a dedicated network server that saves Web pages or other Internet content locally. a. cache server b. cash server Answer Stay in Touch Thank you for reading! For feedback about any of our definitions or to suggest a new definition (or learning resource) please contact us at: editor@whatIs.com FOLLOW US About This E-Newsletter The Word of the Day is published by TechTarget, Inc., 275 Grove Street, Newton, Massachusetts, 02466 US. Click to: Unsubscribe. You are receiving this email because you are a member of TechTarget. When you access content from this email, your information may be shared with the sponsors or future sponsors of that content and with our Partners, see up-to-date Partners List, as described in our Privacy Policy. For additional information, please contact: webmaster@techtarget.com. © 2019 TechTarget, Inc. all rights reserved. Designated trademarks, brands, logos, and service marks are the property of their respective owners. Privacy Policy | Partners List