brucemacv Profile Banner
Bruce MacVarish Profile
Bruce MacVarish

@brucemacv

Followers
2K
Following
71K
Media
100
Statuses
9K

Innovating new security services - AI security of cloud, data, models, agents, apps, workflows, context and governance

Joined August 2007
Don't wanna be here? Send us removal request.
@brucemacv
Bruce MacVarish
1 month
0
0
1
@Techmeme
Techmeme
3 days
Google, Microsoft, Meta, Amazon, OpenAI, and others sign a pledge at the White House to bear the cost of new electricity generation to power their data centers (Reuters) https://t.co/jTf2ul74er https://t.co/g5ywODq9Xq 📥 Send tips!
Tweet card summary image
techmeme.com
Reuters: Google, Microsoft, Meta, Amazon, OpenAI, and others sign a pledge at the White House to bear the cost of new electricity generation to power their data centers
0
4
5
@r0ck3t23
Dustin
4 days
The entire SaaS industry is building software for a customer that is about to go extinct. The human buyer. Insight Partners co-founder Jerry Murdock just exposed the fatal architectural flaw in every incumbent tech company’s business model. Your dashboards. Your UI. Your
147
154
1K
@brucemacv
Bruce MacVarish
5 days
Nadella: “We are one sort of innovation away from the entire regime changing.”
@r0ck3t23
Dustin
5 days
Satya Nadella just said what the entire industry is too invested to admit. Every CEO signing $100 billion data center contracts right now is making a bet that history may not honor. Nadella: “We are one sort of innovation away from the entire regime changing.” Right now, every
0
0
0
@balajis
Balaji
9 days
This is the first AI cut. And it will send shockwaves. Remember: Jack is one of the greatest founders of all time. He created this platform that we’re all on, and has been early to many technological shifts. And Block was doing very well as a business. So, for him to cut 40% of
@jack
jack
9 days
we're making @blocks smaller today. here's my note to the company. #### today we're making one of the hardest decisions in the history of our company: we're reducing our organization by nearly half, from over 10,000 people to just under 6,000. that means over 4,000 of you are
683
1K
10K
@ghadfield
Gillian Hadfield
10 days
NIST just launched an AI Agent Standards Initiative for identity, security, and interoperability. AI agents are becoming economic actors with zero legal infrastructure in place. We require businesses to register to operate. Why expect less of AI agents?
Tweet card summary image
nist.gov
The Initiative will ensure that the next generation of AI is widely adopted with confidence, can function securely on behalf of its users, and can interoperate smoothly across the digital ecosystem.
46
261
930
@businessbarista
Alex Lieberman
11 days
If you're worried you're behind on AI transformation...you probably are. I have studied 100+ companies AI-readiness & every company can be mapped to one of these 9 levels: Level 1 (Awareness): - leadership recognizes AI as strategically important, but it has not yet changed
46
51
414
@sjdedic
Simon Dedic
15 days
Anthropic woke up this morning and decided to make software agencies obsolete - and auditors jobless. A service that used to cost 5 to 6 figures is now cheaper by orders of magnitude. Expecting this trend to continue, adapt or get left behind. Who’s next?
@claudeai
Claude
15 days
Introducing Claude Code Security, now in limited research preview. It scans codebases for vulnerabilities and suggests targeted software patches for human review, allowing teams to find and fix issues that traditional tools often miss. Learn more: https://t.co/n4SZ9EIklG
132
143
3K
@InvestiAnalyst
Francis
17 days
𝗜𝗱𝗲𝗻𝘁𝗶𝘁𝘆 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝘄𝗶𝗹𝗹 𝗰𝗵𝗮𝗻𝗴𝗲 𝗳𝗮𝘀𝘁 𝗶𝗻 𝟮𝟬𝟮𝟲. 𝗔𝗿𝗲 𝘆𝗼𝘂 𝗿𝗲𝗮𝗱𝘆? We are moving from identity governance built for slow human actions to a world where agents execute autonomous actions at machine speed. In our new research, we introduce
0
7
23
@MITSloan
MIT Sloan School of Management
17 days
“It’s absolutely an imperative that every organization have a strategy to deploy and utilize agents in customer-facing and internal use cases.” — @sinanaral
Tweet card summary image
mitsloan.mit.edu
The age of agentic AI — systems that are semi- or fully autonomous and can act on their own — has arrived. Here’s what you need to know, according to MIT experts.
2
15
37
@gdb
Greg Brockman
19 days
taste is a new core skill
893
1K
10K
@AISecHub
AISecHub
18 days
A Practical Guide for Secure MCP Server Development - https://t.co/uUAq0Ulobe A Practical Guide for Secure MCP Server Development provides actionable guidance for securing Model Context Protocol (MCP) servers—the critical connection point between AI assistants and external
5
16
64
@Alfred_Lin
Alfred Lin
18 days
38
62
680
@AISecHub
AISecHub
19 days
AI Security Digest — February 2026 (Week 2) 1️⃣ AI Security Guide and Risk Assessment Tool - @RANDCorporation - https://t.co/UN1U69ZFIk 2️⃣ Worlds: A Simulation Engine for Agentic Pentesting - @dreadnode - https://t.co/k7uSMkXA0o 3️⃣ Claude Desktop Extensions Exposes Over 10,000
1
8
40
@AISecHub
AISecHub
22 days
MITRE ATLAS OpenClaw Investigation Discovers New and Likeliest Techniques - https://t.co/fZ7ROddVuy MITRE ATLAS™ analyzed OpenClaw incidents that showcase how AI-first ecosystems introduce new exploit execution paths. OpenClaw is unique because it can independently make
6
10
55
@brucemacv
Bruce MacVarish
23 days
UC Berkeley’s Agentic AI Risk Profile is a wake-up call. Treat autonomous AI agents as untrustworthy actors. Prioritize system-level safeguards like least-privilege access, red-teaming for emergent behaviors, and kill switches to prevent loss of control. Harness the power,
@AISecHub
AISecHub
23 days
Agentic AI Risk-Management Standards Profile - https://t.co/aqACQArLfQ A new paper authored by researchers from the Center for Long-Term Cybersecurity’s Artificial Intelligence Security Initiative (AISI) focuses on “AI agents” or “agentic AI,” AI systems that can autonomously
0
0
0
@AISecHub
AISecHub
23 days
Agentic AI Risk-Management Standards Profile - https://t.co/aqACQArLfQ A new paper authored by researchers from the Center for Long-Term Cybersecurity’s Artificial Intelligence Security Initiative (AISI) focuses on “AI agents” or “agentic AI,” AI systems that can autonomously
1
7
32
@TheYotg
The Year of the Graph
23 days
Is graph the fastest growing segment in AI research? Dan McGrath's research suggests so. McGrath tracked the raw growth of graph-related research against the baseline of all total papers from 2023 to present. The results show a clear acceleration. In 2023, graph research was
0
5
30
@elonmusk
Elon Musk
29 days
Here we go
@DanielLockyer
Daniel Lockyer
1 month
malware found in the top downloaded skill on clawhub and so it begins
3K
14K
78K
@ashugarg
ashu garg
1 month
After @JayaGup10 and I published our context graphs p.o.v., the question we heard most was how do you actually build one? @akoratana wrote one of the most insightful answers I've seen. His core insight: you don't prescribe the schema upfront. You let agents discover it through
Tweet card summary image
foundationcapital.com
A month ago, Jaya and I published our p.o.v. on context graphs. Since then, it’s become one of the most-discussed – and, in our opinion, most important – ideas in AI this year.
5
6
28
@CircleID
CircleID
1 month
DOTBRANDS AND THE 2026 ICANN NEW GTLD ROUND: STRATEGIC CONTROL AT THE DNS LAYER — Brand owners face a rare 2026 opportunity to claim dotBrand TLDs, gaining unmatched control over digital identity, security, and trust at internet scale. Learn more: https://t.co/s8wiGB7Byv
circleid.com
As ICANN prepares to reopen its New gTLD application window in April 2026, brand owners must decide whether a dotBrand domain offers strategic control, security and long-term digital identity...
0
1
1