Gartner Blog Network

Avivah Litan
VP Distinguished Analyst
19 years at Gartner
34 years IT industry

Avivah Litan is a Vice President and Distinguished Analyst in Gartner Research. Ms. Litan's areas of expertise include endpoint security, security analytics for cybersecurity and fraud, user and entity behavioral analytics, and insider threat detection. Read Full Bio

Real ID can turn into REAL security issues

by Avivah Litan  |  March 26, 2019

I just returned from a trip to my local MVA (Motor Vehicle Administration) to get my driver’s license renewed. And I came home worried more than ever about my identity being hijacked by a bad actor. Having spent many years as a fraud analyst, I went into this process duly impressed that they were making […]

Read more »

Enterprise (Permissioned) Blockchain; Hardly a Revolution Yet

by Avivah Litan  |  March 5, 2019

Blockchain winter and disillusionment has surely set in.  But if you break the technology and enterprise use cases down, some aspects of blockchain serve a solid achievable purpose, though I would hardly call it a revolution. In the short term, at least, the primary benefit being achieved in enterprise permissioned blockchain is that it supports […]

Read more »

QuadrigaCX: Don’t confuse suspect exchanges with blockchain technology

by Avivah Litan  |  February 5, 2019

The incident at QuadrigaCX reminds us that no matter how secure a technology is, the weakest security link is almost always the people who interface with the system.  QuadrigaCX is a major  cryptocurrency exchange in Canada, and the alleged death of its founder — the only person reportedly to have possession of the password to […]

Read more »

Amazon’s QLDB challenges Permissioned Blockchain

by Avivah Litan  |  January 21, 2019

Amazon Web Services recently announced the preview of Quantum Ledger Database (QLDB), promising a centrally administered immutable data ledger within AWS.  We predict that QLDB and other competitive centralized ledger technology offerings that will eventually emerge will gain at least twenty percent of permissioned blockchain market share over the next three years. My colleague Nick […]

Read more »

7 Lessons from Marriott Starwood breach and what Mueller teaches us

by Avivah Litan  |  December 10, 2018

Starwood emailed me a couple days ago telling me my data was part of their 500 million record customer data breach.  The remediation actions they offered me: call their call center, read their email, proactively learn if my data is for sale (without a URL to enroll in that service) …only served to infuriate me.  […]

Read more »

Ransomware indictments raise Alarms; Proof (again) Bitcoin NOT anonymous

by Avivah Litan  |  December 3, 2018

Last Wednesday, the U.S. Department of Justice indicted two Iranians for perpetrating cyber-attacks using SamSam, an advanced variant of ransomware. SamSAM is best known for attacking the City of Atlanta’s municipal systems in March 2018, rendering many of them dysfunctional for almost a week. See Wikipedia on Atlanta SamSam attacks Other SamSam targets include; Kansas […]

Read more »

Exploring the Potential of Blockchain and IoT integration

by Avivah Litan  |  October 25, 2018

My colleague Benoit Lheureux and I are starting up some new research on the integration of IoT and blockchain. Understanding the value of this integration is easy to do especially when we think about different asset tracking use cases. For example, shipping pharmaceuticals or various food substances often requires that the individual units are refrigerated […]

Read more »

Illicit Crypto Activity points to need for Fraud Detection

by Avivah Litan  |  October 1, 2018

Saturday’s front page Wall Street Journal article (see How Dirty Money Disappears into the Black Hole of Cryptocurrency ) indirectly points to the emerging need for fraud detection for cryptocurrency and other blockchain transactions. Despite the hype, and for the time being, criminal use of startup cryptocurrency exchanges for money laundering  appears to be relatively small […]

Read more »

The Shortsightedness of Blockchain Disillusionment

by Avivah Litan  |  September 24, 2018

Anyone who gets disillusioned with blockchain should consider spending time researching why blockchain technology: Is still immature, What needs to happen to make it scalable, and Why it can revolutionize business and society The hype over blockchain was not misguided.  As with most catalyzing technologies, the hype resulted from a glimpse of a promising future […]

Read more »

Controlling our own Algorithms; Cool Vendors in Blockchain Technology

by Avivah Litan  |  September 7, 2018

Last night I heard Yuval Harari, author of three books including “Sapiens”, interviewed in Washington D.C. My main takeaway: whoever controls our algorithms will control our destiny. What does this have to do with Cool Vendors in Blockchain Technology? They are working on helping ensure that each individual controls his or her own algorithms and […]

Read more »