Mark McGuire
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 146 | Founded | a year ago | Last Issue | 6 days ago |
| Active | |||||
Read this Newsletter
markmcguirequantum.substack.comLatest Issues
The Signature on That Transaction Can Be Forged Retroactively
The financial sector has a second threat beyond Harvest Now Decrypt Later (HNDL) that gets less attention. Researchers call it “Trust Now, Forge Later” (TNFL). HNDL is someone reading what they shouldn’t. TNFL is a rewrite of history.
A di...
You've Already Been Breached, They Just Can't Decrypt It Yet.
Some of your encrypted data will be worthless in a year. Personnel records from a restructuring. A proposal that didn’t win. Last quarter’s pricing. Nobody needs that in five years.
Some of it won’t be. Customer records. Intellectual prope...
The Lock Still Works. The Key Is Being Copied.
In 1994, a mathematician named Peter Shor presented an algorithm at an academic conference. He described getting off the stage and immediately being approached by people from the NSA. The NSA doesn’t attend math talks out of academic intere...
Your Classical Computer Just Hit a Wall
At some point someone is going to ask you whether your organization is prepared for quantum. You should be able to answer that question. Right now you probably can’t, but that’s entirely normal. The current landscape is dominated by convers...
The Model Problem Is the Crypto Problem - Except Everything Breaks
Imagine a simple scenario, one that likely played out in your company at least once in the last year.
GPT-5 replaced GPT-4o in many workflows, but it just didn’t work right. It didn’t respond to prompts the same way its predecessor did. A...
Audience Metrics
Subscribers, engagement, traffic and sponsorship for Mark McGuire.
| Subscribers | Engagement | 64 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Explore More
Authors
The writers behind this newsletter.
Quantum hardware founder and AI systems engineer. I write for the executives caught between vendor hype and technical reality without adding to either. Author of the HQx series. Chapter manager, QSECDEF.
Frequently Asked Questions
How can I access the email archive for Mark McGuire?
You can find recent issues that have been published by Mark McGuire on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does Mark McGuire have?
To see how many people subscribe to Mark McGuire, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in Mark McGuire?
Newsletter advertising can be extremely effective when it's done right. Before you pitch Mark McGuire as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like Mark McGuire?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact Mark McGuire using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to Mark McGuire?
Scroll up to where it says Related Newsletters to see other publications like Mark McGuire. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact Mark McGuire?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.