Marin Ivezic
@ivezic.bsky.social
Founder, AppliedQuantum.com | Former CISO, CTO, Big 4 Partner, Quantum & Cyber Entrepreneur | #Quantum, #QuantumComputing, #QuantumSecurity #QuantumResistance #PQC #QuantumAI #QuantumML #Cybersecurity #QuantumReadiness #Q-Day
Telecoms: quantum readiness can't wait. New mandates make PQC a multi-year, telco-wide transformation — not a simple patch. If you haven't started a program, start now. Read more: postquantum.com/post-quantum... #PostQuantum #Telecom
Telecom Quantum Readiness: Why the Urgency and Where to Start
An increasing number of telecom leaders have been pinging me lately about quantum readiness. And frankly, that’s exactly what they should be doing. New regulations and mandates are emerging left and...
postquantum.com
December 12, 2025 at 7:40 PM
Telecoms: quantum readiness can't wait. New mandates make PQC a multi-year, telco-wide transformation — not a simple patch. If you haven't started a program, start now. Read more: postquantum.com/post-quantum... #PostQuantum #Telecom
QKD vs PQC: Countries are split. Some (e.g., China) build QKD networks, while the US/UK - and companies like Google - favor post-quantum cryptography. The NSA says it does not support QKD for national security. Read more: postquantum.com/post-quantum... #PostQuantum #QKD
Quantum Key Distribution (QKD): Why Countries Differ on Its Future
Quantum Key Distribution (QKD) - a method of securing communications using quantum physics - has become a flashpoint...
postquantum.com
December 3, 2025 at 2:40 PM
QKD vs PQC: Countries are split. Some (e.g., China) build QKD networks, while the US/UK - and companies like Google - favor post-quantum cryptography. The NSA says it does not support QKD for national security. Read more: postquantum.com/post-quantum... #PostQuantum #QKD
Too many Q-Day predictions are “by vibes.” I’ve updated my CRQC Capability Framework - the evidence-based method used by national security analysts for years.
If you want to track Q-Day properly - QEC, connectivity, magic states, decoders - not hype: postquantum.com/post-quantum...
If you want to track Q-Day properly - QEC, connectivity, magic states, decoders - not hype: postquantum.com/post-quantum...
The CRQC Quantum Capability Framework
Detailed, end‑to‑end QC capability map for understanding what it will actually take to reach a cryptographically relevant quantum computer (CRQC)
postquantum.com
December 3, 2025 at 10:40 AM
Too many Q-Day predictions are “by vibes.” I’ve updated my CRQC Capability Framework - the evidence-based method used by national security analysts for years.
If you want to track Q-Day properly - QEC, connectivity, magic states, decoders - not hype: postquantum.com/post-quantum...
If you want to track Q-Day properly - QEC, connectivity, magic states, decoders - not hype: postquantum.com/post-quantum...
My blog PostQuantum.com just went over 1M unique visitors in 30 days. 37K in the last day.
The message is clear: Quantum security is no longer niche - and people are trying to cut through the hype, confusion, and pseudo-expert noise.
If you need well-researched, cited guidance: postquantum.com
The message is clear: Quantum security is no longer niche - and people are trying to cut through the hype, confusion, and pseudo-expert noise.
If you need well-researched, cited guidance: postquantum.com
December 3, 2025 at 8:20 AM
My blog PostQuantum.com just went over 1M unique visitors in 30 days. 37K in the last day.
The message is clear: Quantum security is no longer niche - and people are trying to cut through the hype, confusion, and pseudo-expert noise.
If you need well-researched, cited guidance: postquantum.com
The message is clear: Quantum security is no longer niche - and people are trying to cut through the hype, confusion, and pseudo-expert noise.
If you need well-researched, cited guidance: postquantum.com
New Nature Photonics demo links two quantum networks into one 8‑user system, routing and even “teleporting” entanglement on demand—using a programmable multimode optical fiber (under £100). Big step toward a real quantum internet. Read: postquantum.com/quantum-rese... #QuantumInternet #Photonics
Linking Two Quantum Networks
A new paper in Nature Photonics by Natalia Herrera Valencia et al. (2025) reports a prototype quantum network that connects two previously separate networks into a single eight-user system. In practical...
postquantum.com
December 3, 2025 at 2:35 AM
New Nature Photonics demo links two quantum networks into one 8‑user system, routing and even “teleporting” entanglement on demand—using a programmable multimode optical fiber (under £100). Big step toward a real quantum internet. Read: postquantum.com/quantum-rese... #QuantumInternet #Photonics
Investor confidence in quantum tech surges: London-based Firgun Ventures announced a $70M first close of a $250M quantum fund (Qatar Investment Authority anchor) to back post-seed/early-growth quantum hardware, software, comms & sensing. postquantum.com/industry-new... #QuantumTech
Quantum Funding Surge: Firgun Ventures’ $70 M Quantum Tech VC Round
Investor confidence in quantum technology is reaching new heights, as evidenced by London-based Firgun Ventures announcing a $70 million first close of its new quantum-focused venture fund. Firgun’s...
postquantum.com
December 2, 2025 at 9:44 PM
Investor confidence in quantum tech surges: London-based Firgun Ventures announced a $70M first close of a $250M quantum fund (Qatar Investment Authority anchor) to back post-seed/early-growth quantum hardware, software, comms & sensing. postquantum.com/industry-new... #QuantumTech
PANW CEO Nikesh Arora warns nation-states may have cryptanalytic quantum computers by 2029 — forcing many security appliances to be replaced. Palo Alto is rolling out quantum‑safe products as customers accelerate PQC planning. Read: postquantum.com/industry-new... #QuantumSecurity
Palo Alto Networks CEO Warns of Nation-State Quantum Threat by 2029
Nikesh Arora, CEO of Palo Alto Networks, has issued a stark warning that hostile nation-states may possess cryptanalytically relevant quantum computers by 2029 – or even sooner. Speaking on the cybersecurity...
postquantum.com
December 2, 2025 at 7:40 PM
PANW CEO Nikesh Arora warns nation-states may have cryptanalytic quantum computers by 2029 — forcing many security appliances to be replaced. Palo Alto is rolling out quantum‑safe products as customers accelerate PQC planning. Read: postquantum.com/industry-new... #QuantumSecurity
U.S. advisory panel urges a “Quantum First” national goal by 2030 — accelerate quantum computing, communications and post-quantum security to secure advantage in cryptography, drug discovery and materials science. Read more: postquantum.com/quantum-poli... #Quantum #QuantumSecurity
U.S. Panel Urges a “Quantum First” Goal by 2030 to Outpace China
In a bid to secure the technological high ground, the U.S.-China Economic and Security Review Commission - a bipartisan federal advisory panel - has issued a bold recommendation: America should adopt...
postquantum.com
November 22, 2025 at 9:40 PM
U.S. advisory panel urges a “Quantum First” national goal by 2030 — accelerate quantum computing, communications and post-quantum security to secure advantage in cryptography, drug discovery and materials science. Read more: postquantum.com/quantum-poli... #Quantum #QuantumSecurity
This is what happens when you put the majority of tech infrastructure into one #cloudflare basket... Again
November 18, 2025 at 12:00 PM
This is what happens when you put the majority of tech infrastructure into one #cloudflare basket... Again
China's 'photonic quantum chip' is impressive - but it's not a general-purpose quantum computer. Media hype fuels "quantum-washing" and public confusion. Read why this matters for tech and security: postquantum.com/industry-new... #QuantumSecurity #QuantumComputing
China’s “Photonic Quantum Chip” Is Impressive. But It’s Also a Case Study in Quantum-Washing
Every few months, a headline pops up proclaiming the dawn of a new quantum breakthrough - often accompanied by phrases like “1000x faster than classical computers,” “industry first,” “quantum...
postquantum.com
November 17, 2025 at 12:15 PM
China's 'photonic quantum chip' is impressive - but it's not a general-purpose quantum computer. Media hype fuels "quantum-washing" and public confusion. Read why this matters for tech and security: postquantum.com/industry-new... #QuantumSecurity #QuantumComputing
Quantum computing’s news cycle is now officially operating at qubit frequency.
Helios. Quantum advantage. Below-threshold QEC. Neutral atoms. IBM. Google. IonQ. DARPA. EU. UK. QKD...
Full roundup + analysis in this week’s Quantum Observer:
thequantumobserver.com/p/quantum-ob...
Helios. Quantum advantage. Below-threshold QEC. Neutral atoms. IBM. Google. IonQ. DARPA. EU. UK. QKD...
Full roundup + analysis in this week’s Quantum Observer:
thequantumobserver.com/p/quantum-ob...
Quantum Observer #3 - Quantum Progress Hits Overdrive
Helios launched, neutral atoms surprised, IBM flexed… and somewhere, a wellness influencer discovered “quantum resonance”
thequantumobserver.com
November 16, 2025 at 2:41 PM
Quantum computing’s news cycle is now officially operating at qubit frequency.
Helios. Quantum advantage. Below-threshold QEC. Neutral atoms. IBM. Google. IonQ. DARPA. EU. UK. QKD...
Full roundup + analysis in this week’s Quantum Observer:
thequantumobserver.com/p/quantum-ob...
Helios. Quantum advantage. Below-threshold QEC. Neutral atoms. IBM. Google. IonQ. DARPA. EU. UK. QKD...
Full roundup + analysis in this week’s Quantum Observer:
thequantumobserver.com/p/quantum-ob...
Proud moment: AQ Forge - Applied Quantum's deep‑tech lab - is a finalist in @QAIventures GenQ Hackathon in Singapore.
Huge appreciation to the AQ Forge crew for the grit, curiosity, and craft you bring to this work.
#QuantumComputing #QuantumAI #DeepTech #Singapore #AQForge #AppliedQuantum #GenQ
Huge appreciation to the AQ Forge crew for the grit, curiosity, and craft you bring to this work.
#QuantumComputing #QuantumAI #DeepTech #Singapore #AQForge #AppliedQuantum #GenQ
October 26, 2025 at 10:33 AM
Proud moment: AQ Forge - Applied Quantum's deep‑tech lab - is a finalist in @QAIventures GenQ Hackathon in Singapore.
Huge appreciation to the AQ Forge crew for the grit, curiosity, and craft you bring to this work.
#QuantumComputing #QuantumAI #DeepTech #Singapore #AQForge #AppliedQuantum #GenQ
Huge appreciation to the AQ Forge crew for the grit, curiosity, and craft you bring to this work.
#QuantumComputing #QuantumAI #DeepTech #Singapore #AQForge #AppliedQuantum #GenQ
A single day with 4 breakthrough quantum tech developments - each with the potential to accelerate the arrival of Q-Day.
That’s exactly what happened on Sept 24–25.
I break it all down in the first issue of The Quantum Observer: quantumobserver.com/p/quantums-w...
#QuantumComputing #PQC #QDay
That’s exactly what happened on Sept 24–25.
I break it all down in the first issue of The Quantum Observer: quantumobserver.com/p/quantums-w...
#QuantumComputing #PQC #QDay
Quantum’s Wild Week
The week quantum research smashed timelines and regulators and industry organizations yelled “Move faster!”
quantumobserver.com
September 28, 2025 at 7:02 AM
A single day with 4 breakthrough quantum tech developments - each with the potential to accelerate the arrival of Q-Day.
That’s exactly what happened on Sept 24–25.
I break it all down in the first issue of The Quantum Observer: quantumobserver.com/p/quantums-w...
#QuantumComputing #PQC #QDay
That’s exactly what happened on Sept 24–25.
I break it all down in the first issue of The Quantum Observer: quantumobserver.com/p/quantums-w...
#QuantumComputing #PQC #QDay
What a week for quantum tech! Qubits leaping ahead of schedule, Caltech scaling to 6,100, HSBC finding real quantum advantage, NIST issuing new PQC guidance - and more.
I unpack it all in the first edition of The Quantum Observer: quantumobserver.com/p/quantums-w...
#Quantum #PostQuantum #PQC
I unpack it all in the first edition of The Quantum Observer: quantumobserver.com/p/quantums-w...
#Quantum #PostQuantum #PQC
Quantum’s Wild Week
The week quantum research smashed timelines and regulators and industry organizations yelled “Move faster!”
quantumobserver.com
September 27, 2025 at 10:39 PM
What a week for quantum tech! Qubits leaping ahead of schedule, Caltech scaling to 6,100, HSBC finding real quantum advantage, NIST issuing new PQC guidance - and more.
I unpack it all in the first edition of The Quantum Observer: quantumobserver.com/p/quantums-w...
#Quantum #PostQuantum #PQC
I unpack it all in the first edition of The Quantum Observer: quantumobserver.com/p/quantums-w...
#Quantum #PostQuantum #PQC
Quantum-safe upgrades aren’t just for your encryption appliances – they’re for every system that touches crypto. This article drives home that point: nearly every enterprise system uses cryptography so almost everything will need some update for the quantum era postquantum.com/post-quantum...
Quantum Era Demands Changes to ALL Enterprise Systems
Preparing for this seismic shift is far more complex than most realize. It is not just about changes to a few systems; it requires an enterprise-wide...
postquantum.com
August 30, 2025 at 9:07 PM
Quantum-safe upgrades aren’t just for your encryption appliances – they’re for every system that touches crypto. This article drives home that point: nearly every enterprise system uses cryptography so almost everything will need some update for the quantum era postquantum.com/post-quantum...
The big picture: telecom execs need to see PQC migration as a strategic resilience initiative, not just a tech upgrade. It will touch everything – standards, supply chain, devices, cloud, edge. Coordination is key... #QuantumReadiness postquantum.com/post-quantum...
Telecom’s Quantum‑Safe Imperative: Challenges in Adopting Post‑Quantum Cryptography
The race is on to quantum‑proof the world’s telecom networks. With cryptographically relevant quantum computers (CRQC) projected to arrive...
postquantum.com
August 9, 2025 at 9:40 AM
The big picture: telecom execs need to see PQC migration as a strategic resilience initiative, not just a tech upgrade. It will touch everything – standards, supply chain, devices, cloud, edge. Coordination is key... #QuantumReadiness postquantum.com/post-quantum...
The first generation of quantum code-breakers won’t be cheap to run: each RSA-2048 crack could consume tens of MWh of energy. That means only high-value targets would be worth the effort initially... #QuantumResilience postquantum.com/post-quantum...
The Enormous Energy Cost of Breaking RSA‑2048 with Quantum Computers
The energy requirements for breaking RSA-2048 with a quantum computer underscore how different the post-quantum threat is...
postquantum.com
August 8, 2025 at 11:40 PM
The first generation of quantum code-breakers won’t be cheap to run: each RSA-2048 crack could consume tens of MWh of energy. That means only high-value targets would be worth the effort initially... #QuantumResilience postquantum.com/post-quantum...
TL;DR from this deep-dive: transparency is security. A CBOM brings cryptography out of the shadows. Expect CBOMs to become as routine as SBOMs in audits. It’s a bit more work now for a lot more peace of mind later. #PQC #CryptoAgility postquantum.com/post-quantum...
Cryptographic Bill of Materials (CBOM) Deep-Dive
Cryptographic Bill of Materials (CBOM) represent the next evolution in software transparency and security risk management...
postquantum.com
August 8, 2025 at 6:40 PM
TL;DR from this deep-dive: transparency is security. A CBOM brings cryptography out of the shadows. Expect CBOMs to become as routine as SBOMs in audits. It’s a bit more work now for a lot more peace of mind later. #PQC #CryptoAgility postquantum.com/post-quantum...
Why 2030 for Q-Day? 3 pieces of recent news: IBM plans ~200 logical qubits by 2029, Gidney’s 2025 paper showed ~1300 logical qubits running 1 week could factor RSA-2048, and Oxford set a record for low error rates. Put together, that makes a 2030 plausible. postquantum.com/post-quantum...
Q-Day Revisited - RSA-2048 Broken by 2030: Detailed Analysis
It’s time to mark a controversial date on the calendar: 2030 is the year RSA-2048 will be broken by a quantum computer - or the Q-Day.
postquantum.com
August 8, 2025 at 4:40 PM
Why 2030 for Q-Day? 3 pieces of recent news: IBM plans ~200 logical qubits by 2029, Gidney’s 2025 paper showed ~1300 logical qubits running 1 week could factor RSA-2048, and Oxford set a record for low error rates. Put together, that makes a 2030 plausible. postquantum.com/post-quantum...
CBOM (Cryptography Bill of Materials) is the new buzzword. Think SBOM but for encryption. To migrate to #PQC, you first need a map of every place cryptography lives in your org. This article shows how various tools help assemble that map. #CryptoAgility postquantum.com/post-quantum...
Cryptographic Inventory Vendors and Methodologies
Achieving a comprehensive cryptographic inventory often requires combining multiple tools and methodologies. Each solution...
postquantum.com
August 8, 2025 at 1:40 PM
CBOM (Cryptography Bill of Materials) is the new buzzword. Think SBOM but for encryption. To migrate to #PQC, you first need a map of every place cryptography lives in your org. This article shows how various tools help assemble that map. #CryptoAgility postquantum.com/post-quantum...
Don’t rely on manual, interview-based cryptographic inventories – they’re usually incomplete and give a false sense of security. This article argues that a half-baked inventory is dangerous postquantum.com/post-quantum...
Dos & Don'ts of Crypto Inventories for Quantum Readiness
Manual, interview-based, surrvey-based, spreadsheet-based cryptographic inventories are insufficient and potentially detrimental...
postquantum.com
August 8, 2025 at 7:20 AM
Don’t rely on manual, interview-based cryptographic inventories – they’re usually incomplete and give a false sense of security. This article argues that a half-baked inventory is dangerous postquantum.com/post-quantum...
Remember late 2022 when headlines screamed a Chinese research team had a new quantum algorithm that might break RSA-2048 with just 372 qubits? This article recounts that saga and current state. Spoiler: the hype got ahead of reality. postquantum.com/post-quantum...
Breaking RSA Encryption: Quantum Hype Meets Reality (2022–2025)
If you encrypted a message with an RSA-2048 public key today, no one on Earth knows how to factor it with currently available technology...
postquantum.com
August 7, 2025 at 11:40 PM
Remember late 2022 when headlines screamed a Chinese research team had a new quantum algorithm that might break RSA-2048 with just 372 qubits? This article recounts that saga and current state. Spoiler: the hype got ahead of reality. postquantum.com/post-quantum...
Why 2030 for Q-Day? Three pieces of recent news: IBM plans ~200 logical qubits by 2029, Gidney’s 2025 paper showed ~1300 logical qubits could factor RSA-2048, and Oxford set a record for low error rates. Put together, that makes a 2030 quantum code-breaker plausible. postquantum.com/post-quantum...
Q-Day Revisited - RSA-2048 Broken by 2030: Detailed Analysis
It’s time to mark a controversial date on the calendar: 2030 is the year RSA-2048 will be broken by a quantum computer - or the Q-Day.
postquantum.com
August 7, 2025 at 8:40 PM
Why 2030 for Q-Day? Three pieces of recent news: IBM plans ~200 logical qubits by 2029, Gidney’s 2025 paper showed ~1300 logical qubits could factor RSA-2048, and Oxford set a record for low error rates. Put together, that makes a 2030 quantum code-breaker plausible. postquantum.com/post-quantum...
No, migrating to #PQC isn’t a “one-click” software patch. In reality, it’s a years-long effort: you need to map all your crypto usage, replace algorithms across apps, devices, and protocols, and do tons of testing. There’s no “easy” button to become #QuantumResilient. postquantum.com/post-quantum...
Quantum Readiness / PQC Migration Is The Largest, Most Complex IT/OT Overhaul Ever - So Why Wait?
Quantum readiness / PQC migration is arguably the largest and most complicated digital infrastructure overhaul in history. Yes, far bigger than Y2K...
postquantum.com
August 7, 2025 at 6:40 PM
No, migrating to #PQC isn’t a “one-click” software patch. In reality, it’s a years-long effort: you need to map all your crypto usage, replace algorithms across apps, devices, and protocols, and do tons of testing. There’s no “easy” button to become #QuantumResilient. postquantum.com/post-quantum...
Reality check: today’s quantum hardware is small and noisy, so QML is largely experimental. The guide acknowledges limitations and suggests near-term hybrid approaches. This is a comprehensive resource to get up to speed on quantum + ML. #QuantumAI postquantum.com/quantum-ai/q...
Guide to Quantum ML for Data Scientists
Quantum Machine Learning (Quantum ML or QML) is an emerging interdisciplinary field that integrates quantum computing with traditional ML
postquantum.com
August 7, 2025 at 1:40 PM
Reality check: today’s quantum hardware is small and noisy, so QML is largely experimental. The guide acknowledges limitations and suggests near-term hybrid approaches. This is a comprehensive resource to get up to speed on quantum + ML. #QuantumAI postquantum.com/quantum-ai/q...