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Platform Portability
Uses custom domain (zetter-zeroday.com) — can migrate to any platform without losing subscribers
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Stories about cybersecurity and national security
Data updated Yesterday
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Start tracking — freeWe began tracking ZERO DAY 16 days ago. A growth trend will appear once we have more data points.
Avg Comments
0.5
Engagement Rate
<0.01%· ~1 likes + comments/post
(comments + likes) / subscribers
Quality Score
Engagement vs Technology
<0.01% engagement rate
Score Breakdown
Engagement Score
vs 279 newsletters in Technology
6K places you in the top 25% of newsletters in this category.
Posts per Week
0.4
median: 0.8
Publishing Consistency
44/100
median: 62/100
Subscribers
6K
median: 1K
Here's what we know about this newsletter's activity:
Publishing Pace
Bi-weekly
Variable
Category Rank
#116 of 739
in Technology
Engagement Trend
Declining
based on recent posts
| Subscriber-only |
| Experts Confirm the Fast16 Malware Was Sabotaging Nuclear Weapons Tests, Likely in IranMay 16, 2026 | Public |
| Trenchant Exec Who Sold Zero Days to Russian Buyer Ordered to Pay $10 Million in Restitution to Former EmployersMay 8, 2026 | Public |
| Mystery Around Venezuelan Cyberattack Deepens, with New Discovery of "Highly Destructive" WiperApr 24, 2026 | Public |
| The Sad Decline of Trenchant Exec Who Had Everything, Before Deciding to Steal and Sell Zero Days to Russian BuyerApr 9, 2026 | Public |
| Iranian Hacktivists Strike Medical Device Maker Stryker in "Severe" Attack that Wiped SystemsMar 11, 2026 | Public |
| Trenchant Exec Who Sold His Employer's Zero-Day Exploits to Russian Buyer Sentenced to 7 Years in PrisonFeb 24, 2026 | Public |
| Polish Grid Systems Targeted in Cyberattack Had Little Security, Per New ReportJan 30, 2026 | Public |
| Attack Against Poland's Grid Disrupted Communication Devices at About 30 SitesJan 28, 2026 | Public |
| Booz Allen Tech Contractor Took IRS Job Specifically to Leak Trump's Tax RecordsJan 27, 2026 | Public |
Designing Tomorrow
4K subs
15marches
11K subs
Autonomous Truck(er)s
3K subs
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Publishing Frequency
Bi-weekly
Last published May 16, 2026
0.4 posts/week avg
Technology Pricing
$5/mo median
Premium tier
Monetization Readiness
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