Brian Greenberg
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briangreenberg.net
Brian Greenberg
@briangreenberg.net
620 followers 470 following 1.3K posts
CIO/CTO, Forbes contributor, CyberSecurity Professor @ DePaul, systems thinker, hiker, entrepreneur, philosopher, actor, improviser, storyteller, & coffeehouse addict.

📍Chicago, IL

🦋🥾☕️🎭🤖🪴✍️

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https://briangreenberg.net
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Brian Greenberg @briangreenberg.net · Aug 25
Proud to share my new @forbes.com article: Deepfakes And Social Engineering: A Growing Threat To Everyone.
These aren’t future risks—they’re here now. MFA and layered verification are our best defense.
www.forbes.com/councils/for...
#cybersecurity #deepfakes #Forbes #leadership
Deepfakes And Social Engineering: A Growing Threat To Everyone
Deepfakes and social engineering are real, they're happening today, and they are an immediate threat to organizations and families.
www.forbes.com
briangreenberg.net
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UpScrolled App - App Store
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apps.apple.com
January 30, 2026 at 8:22 PM
briangreenberg.net
FutureCon Chicago proved that cyber defense strategies are red-hot. A packed house proves one thing: community is our best encryption.
🧠 Heavyweight speaker lineup
⚡ High-voltage networking
🎓 Future-proofing the CISO toolkit
futureconevents.com/events/chica...
#CyberSecurity #FutureConCHI
Chicago, IL - FutureCon Events
futureconevents.com
January 30, 2026 at 2:46 PM
briangreenberg.net
Measuring #AI ROI by head count is like measuring a car by how many horses it replaced. It misses the point. The real value is in "unlocked capacity"
🧠 Move beyond simple labor costs.
⚡ Measure "time-to-insight" gains.
🎓 Value is often qualitative.
www.cio.com/article/4106...
AI ROI: How to measure the true value of AI
Measuring AI ROI is tricky. This article describers the advanced metrics (impact chaining, risk-adjusted ROI) and frameworks top companies use to prove value, measure adoption, and manage scaling cost...
www.cio.com
January 28, 2026 at 11:57 PM
briangreenberg.net
The AI dividend is real, but it’s only being paid to the 5% who stopped "tinkering" and started "rebuilding."

🧠 5% "future-built" firms win.
⚡ Agentic AI is the new frontier.
🎓 AI returns are for reinvestment.

www.bcg.com/publications...
#AIValue #BCG
The Widening AI Value Gap
Future-built companies are pulling away, riding transforming investment and the new wave of agents. Others need to move now.
www.bcg.com
January 28, 2026 at 11:51 PM
briangreenberg.net
AI has moved from the "science fair" to the "bottom line" phase. McKinsey’s shows very few are actually capturing its value.
🧠 65% of orgs use GenAI regularly.
⚡ High performers see 10%++ revenue.
🎓 Data readiness is the bottleneck.
www.mckinsey.com/capabilities...
#AI #GenAI
www.mckinsey.com
January 28, 2026 at 11:47 PM
briangreenberg.net
🇺🇸 America is fracturing into a "Splinternet" of rules, where your zip code determines how an algorithm can judge you.
🧠 State vs. Federal gridlock.
⚡ Innovation vs. safety split.
🎓 Compliance is the new tax.
www.technologyreview.com/2026/01/23/1...
#AI #Policy #Legislature #Laws #Government
America’s coming war over AI regulation
In 2026, states will go head to head with the White House’s sweeping executive order.
www.technologyreview.com
January 28, 2026 at 11:38 PM
briangreenberg.net
The 48M Gmail leak is a masterclass in "data recycling." Hackers aren't stealing new data; they’re weaponizing our old laziness. Use MFA!
🧠 48M combos found on BreachForums.
⚡ Most data is recycled.
🎓 Password reuse is the real killer.
www.forbes.com/sites/daveyw...
#CyberSecurity
48 Million Gmail Usernames And Passwords Leaked Online Again
Are your Gmail login credentials amongst the 48 million estimated as exposed in this leak of existing infostealer logs — here's what you need to know.
www.forbes.com
January 28, 2026 at 11:28 PM
briangreenberg.net
🔐 The padlock was a prop. Microsoft is giving BitLocker recovery keys to the FBI 🤬
🧠 Recovery keys auto-sync to Microsoft.
⚡ FBI can access data via cloud backups.
🎓 User control is an illusion.
www.forbes.com/sites/thomas...
#security #privacy #cloud #infosec #cybersecurity
Microsoft Gave FBI BitLocker Encryption Keys, Exposing Privacy Flaw
The tech giant said providing encryption keys was a standard response to a court order. But companies like Apple and Meta set up their systems so such a privacy violation isn’t possible.
www.forbes.com
January 28, 2026 at 11:22 PM
briangreenberg.net
The magic link is now a tragic link. We traded security for ease, forgetting that SMS is just a postcard anyone can read.
🧠 Predictable URLs allow easy brute-force.
⚡ Tokens often never expire.
🎓 177+ services exposing bank/ID data.

arstechnica.com/security/202...
#privacy #security
Millions of people imperiled through sign-in links sent by SMS
Even well-known services with millions of users are exposing sensitive data.
arstechnica.com
January 28, 2026 at 11:15 PM
briangreenberg.net
My latest Substack: Cybersecurity isn’t a choice; it’s a civic duty.
🧠 81% of breaches are password-related
⚡ MFA blocks 99.9% of attacks
🎓 Regulation levels the field
briangreenberg.substack.com/p/the-case-f...
#Cybersecurity #Leadership #TechTrends #security #privacy #cloud #infosec
The Case For Federal Regulations In Cybersecurity: Requiring Passwords And Multifactor Authentication (MFA)
As our world continues to move entirely online, the need for thoughtful cybersecurity has never been more urgent.
briangreenberg.substack.com
January 25, 2026 at 1:42 AM
briangreenberg.net
🚨 Microsoft 365 is down right now—Outlook, Teams, and Office are dark.
🧠 "traffic processing" error halting productivity.
⚡ Engineers rerouting connections to bypass the jam.
🎓 If a meeting can't start on Teams, does it really exist?
www.newsweek.com/microsoft-do...
#TechNews
Microsoft releases statement as Office, Teams, 365 outages continue
A widespread Microsoft outage disrupted Outlook, Teams and Microsoft 365 services Thursday, affecting tens of thousands of users as engineers worked to restore systems.
www.newsweek.com
January 23, 2026 at 4:08 AM
briangreenberg.net
AI security isn't optional; it’s foundational. Attended the Gartner Chicago CIO Community Town Hall on AI Security Today🤖🔐
Clear message: CIOs must balance AI innovation, security, and real business outcomes.
#GartnerCIO #CIOCommunity #AI #Cybersecurity #Gartner
www.gartner.com
January 21, 2026 at 8:01 PM
briangreenberg.net
Attended the CISO Forum 2026 Outlook session: Proactive Resilience hosted by SecurityWeek 🔐
🔹 reactive defense → proactive resilience
🔹 Fuse threat intel + attack surface management
🔹 Geopolitics and regulation are now core CISO inputs
#Cybersecurity
www.securityweek.com
Security Week Home
SecurityWeek provides cybersecurity news and information to global enterprises, with expert insights & analysis for IT security professionals
www.securityweek.com
January 21, 2026 at 7:20 PM
briangreenberg.net
The AI hype train just hit a wall of spreadsheets. The "magic" isn't auto-installing.
🧠 56% of CEOs report ZERO payoff
⚡ Only 12% have actually cracked the code for ROI.
🎓 The lesson: "Dabbling" in AI is just an expensive hobby.
www.theregister.com/2026/01/20/p...
#AI #CEO #TechTrends
Majority of CEOs report zero payoff from AI splurge
: PwC survey finds more than half of 4,500+ biz leaders see no revenue growth nor cost savings
www.theregister.com
January 20, 2026 at 3:05 PM
briangreenberg.net
The best security tool on your iPhone? The power button. Update and reboot‼️
🧠 A simple restart disrupts memory-resident malware.
⚡ Hundreds of millions of devices are currently at risk.
🎓 If you haven't rebooted this week, do it now.
www.forbes.com/sites/zakdof...
#CyberSecurity
Apple Warning—Hundreds Of Millions Of iPhones Must Now Restart
A staggering number of Apple users are now at risk from attacks. Restart your device now.
www.forbes.com
January 15, 2026 at 8:48 PM
briangreenberg.net
🥃
January 13, 2026 at 10:49 PM
briangreenberg.net
Apple and Google just went from frenemies to a power couple. This Gemini deal is a custom architectural handshake—putting Google’s brain inside Siri’s soul while keeping the keys in Cupertino.
🧠 Custom Gemini models
⚡ OS-level synergy
🎓 Apple keeps the UI

9to5mac.com/2026/01/12/a...
#Apple #AI
Apple’s new Google Gemini deal sounds bigger, better than expected - 9to5Mac
Apple and Google are teaming up to power the next-generation Siri with custom Gemini models. And the details so far seem like great news.
9to5mac.com
January 13, 2026 at 12:45 AM
briangreenberg.net
Your phone isn't just a device; it's a beacon for the highest bidder and ICE is buying.
🧠 Webloc monitors entire neighborhoods
⚡ Tracks movement from work to home
🎓 Warrantless via commercial data
www.404media.co/inside-ices-...
#Privacy #Surveillance #security #infosec #cybersecurity
Inside ICE’s Tool to Monitor Phones in Entire Neighborhoods
404 Media has obtained material that explains how Tangles and Webloc, two surveillance systems ICE recently purchased, work. Webloc can track phones without a warrant and follow their owners home or t...
www.404media.co
January 12, 2026 at 8:36 PM
briangreenberg.net
The most dangerous weapon in cyber warfare now fits on a sticky note.

TL;DR
🧠 FBI Alert: Kimsuky targeting US NGOs
⚡ Weaponized QR codes are the new vector
🎓 Curiosity is a security flaw—don't scan it
www.forbes.com/sites/daveyw...
#CyberSecurity #Infosec
FBI Issues Flash U.S. Cybersecurity Warning
The FBI has issued a strongly-worded security warning as U.S. entities are targeted by North Korean attackers.
www.forbes.com
January 12, 2026 at 8:25 PM
briangreenberg.net
Stanford AI Experts Predict What Will Happen in 2026... the year AI stops auditioning and starts getting graded.

TL;DR
🧠 Rigor over hype
⚡ Sovereignty + new UIs
🎓 ROI + job dashboards

hai.stanford.edu/news/stanfor...

#AI #AIpolicy #FutureOfWork
Stanford AI Experts Predict What Will Happen in 2026 | Stanford HAI
The era of AI evangelism is giving way to evaluation. Stanford faculty see a coming year defined by rigor, transparency, and a long-overdue focus on actual utility over speculative promise.
hai.stanford.edu
January 7, 2026 at 9:24 PM
briangreenberg.net
Greed turned a secret military strike into a tradable asset.
TL;DR
🧠 Insiders can trade on classified plans
⚡ Profit beats ethics and restraint
🎓 National security gets monetized

www.theatlantic.com/technology/2...

#PredictionMarkets #Ethics #Politics #Cybersecurity #Privacy #InfoSec
The Polymarket Bets on Maduro Are a Warning
Get ready for the golden age of insider trading.
www.theatlantic.com
January 7, 2026 at 2:36 AM
briangreenberg.net
Space isn't just for satellites, it's where next gen microchips will be made.
🧠 Machines in orbit made plasma for chip making
⚡ Microgravity could yield ultra-precise chips
🎓 Opens new manufacturing fronts
www.scientificamerican.com/article/the-...
#SpaceTech #Semiconductors #Innovation
The Push to Make Semiconductors in Space Just Took a Serious Leap Forward
Space Forge plans to manufacture semiconductors from space—without the need for humans
www.scientificamerican.com
January 7, 2026 at 2:22 AM
briangreenberg.net
🔥 Ring is turning its home cameras into wildfire sentinels with a new feature called Fire Watch.
TL;DR
🧠 AI scans for smoke & flames
⚡ Opt-in alerts + shared footage
🎓 Consumer tech meets public safety

www.theregister.com/2026/01/07/r...

#WildfireTech #AI #SmartCities #cybersecurity
Ring ready for end of the world as it turns cameras on fires
: Amazon's community surveillance biz bets on AI to recognize danger
www.theregister.com
January 7, 2026 at 2:16 AM
briangreenberg.net
Passkeys were built to replace passwords but could they seed all cryptography?
🧠 Repurposes passkeys as cryptographic seeds
⚡ Derives a reproducible seed from WebAuthn keys
🎓 Unlocks many crypto key types beyond login
backalleycoder.com/posts/passse...
#Passkeys #Cryptography #WebAuthn
PassSeeds - Hijacking Passkeys to Unlock Cryptographic Use Cases | Back Alley Coder
An exploration in using Passkeys as generalized cryptographic seed material to address new use cases, while inheriting the benefits of cross-device synced keys with native biomentric UX.
backalleycoder.com
January 7, 2026 at 2:02 AM
briangreenberg.net
Data centers don’t spread evenly. They cluster where power and policy quietly align.

TL;DR
🧠 Most new builds are in the U.S.
⚡ U.S. sites are much larger
🎓 Power grids feel the strain

spectrum.ieee.org/data-center-...

#DataCenters #Energy #AI #China
U.S. Data Centers Are Set to Dominate the Global Landscape
The U.S. is set to dominate the global data center landscape, but can the power grid handle the surge?
spectrum.ieee.org
January 7, 2026 at 1:54 AM