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What it’s like being the only security company in your YC batch
A guest post from Alex Chantavy about participating in Y Combinator as a security company.
Jun 18
•
Alex Chantavy
19
11 generalist mental models applied to cyber: CISOs’ and founders’ guide
A set of generalist frameworks (mental models, principles, or whatever you want to call them) that 100% apply to cyber.
Jun 16
•
Ross Haleliuk
27
What Israeli dominance in cyber means for non-Israeli cybersecurity founders
Sharing some thoughts about Israeli and non-Israeli security startups
Jun 10
•
Ross Haleliuk
23
3
4
Four questions that answer if a security product will survive in the AI-first world
A few questions I think about when I evaluate if a company or a market category is going to stick around.
Jun 2
•
Ross Haleliuk
28
1
May 2026
Cybersecurity is really boring
Basically, what the title says.
May 19
•
Ross Haleliuk
48
5
3
What works against Mythos today is what worked against ransomware 5 years ago, and malware 10-15 years ago
In security or otherwise, trends are temporary. Stick to fundamentals.
May 12
•
Ross Haleliuk
35
5
5
April 2026
Infra + security: why more & more CISOs are starting to own infrastructure
Discussing the convergence of infra and security and what this means for CISOs, founders, and the industry as a whole
Apr 28
•
Ross Haleliuk
37
3
4
AI is one of the two monumental shifts in cyber today
The way security products are bought has changed, but many people missed it
Apr 21
•
Ross Haleliuk
32
2
3
AI might be killing traditional SIEMs, but data advantage is as strong as ever
A few thoughts about how AI agents are fundamentally changing SIEM and adjacent markets, and what this means for the future
Apr 14
•
Ross Haleliuk
43
1
2
Blind Men and the Elephant: the story of cybersecurity
Our view of cybersecurity is defined by our backgrounds, and that perspective is usually very limiting
Apr 7
•
Ross Haleliuk
38
4
2
March 2026
5 unexpected takeaways and one big prediction from RSAC
The dust is settling, and CISOs are refocusing on what actually matters to their organizations, not just what marketers want them to care about (no…
Mar 31
•
Ross Haleliuk
25
2
1
“It is not the customer’s job to know what they want” rings true in cyber
And also, there has never been a billion-dollar security company built based on Gartner’s insight alone
Mar 24
•
Ross Haleliuk
15
1
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