17% Cumulative Inflation in France and ANTS Data Breach: When Savings and Privacy Evaporate
📋 En bref (TL;DR)
- 17% cumulative inflation in France since 2020 according to Deutsche Bank — food +20%, energy bills +33%, Livret A savings account yielded negative real returns for 3 years
- 19 million records of French citizens up for sale after the France Titres (ANTS) hack via a “stupid” IDOR vulnerability
- Middle class squeezed hardest: median salary lost ~€110/month in purchasing power, while minimum wage tracked inflation (+18.4%)
- Cascade of French data breaches: after France Travail (36.8M), Free (19M), Viamedis (33M) — centralized databases are structural “honeypots”
- Bitcoin: +1,000% over the same period — an imperfect short-term hedge, but crushing inflation over 5 years
- Decentralized identity (blockchain) is the only architectural answer to massive data breaches
Two pieces of French news this week paint a troubling picture. On one hand, a Deutsche Bank study reveals that the French have endured 17% cumulative inflation since 2020 — a figure many don’t realize because it crept in gradually. On the other, a massive data breach at France Titres (formerly ANTS) exposes 19 million citizens. The common thread: in both cases, centralized systems are failing the people they’re meant to serve.
17% Inflation: The Numbers Nobody Wants to See
According to the Deutsche Bank study relayed by strategist Nicolas Chéron, France has experienced approximately 17% cumulative inflation between 2020 and early 2026. Crédit Agricole confirms a figure of 17.3%, below the eurozone average (20.8%) but devastating enough for household budgets.
INSEE annual data trace the trajectory: +0.5% in 2020, +1.6% in 2021, then the shock — +5.2% in 2022 and +4.9% in 2023 — before a gradual return to +2% in 2024 and +0.9% in 2025. The cumulative effect is brutal: each increase compounds on top of the previous one.
Food and Energy: Where It Hurts Most
Food was the most violent driver: +20.5% between January 2022 and January 2024, with a peak of +10% year-over-year in September 2022.
On energy, the average household bill climbed +33% between 2021 and 2024 (from €124 to €165/month). Electricity rose 18% in 2024 as government price caps were removed, gas jumped 20% in 2023 then 13% in 2024.
Wages and Savings: The Middle Class Pays the Price
France’s minimum wage (SMIC) held up thanks to its automatic inflation indexing: +18.4% since January 2020, or €284 more per month. But the median salary (€2,190 net in the private sector) didn’t keep pace. Result: ~€110 in monthly purchasing power lost for the middle class.
The wage compression phenomenon is telling: the SMIC-to-median-salary ratio went from 1.45 in 2020 to 1.38 in 2024. Workers just above minimum wage are proportionally the hardest hit.
Livret A: The Illusion of Safety
The Livret A, France’s most popular savings account (held by 55 million citizens), delivered negative real returns for three consecutive years (2020-2023). Its rate reached 3% in February 2023 — too late, cumulative inflation had already taken the lead. It has since dropped to 1.5% in February 2026.
Bottom line: a French citizen who had €10,000 in their Livret A in 2020 has seen their purchasing power shrink by roughly €1,200 in real terms, despite interest earned.
Bitcoin vs. Inflation: The Numbers Speak
Over the same period (2020-2026), Bitcoin went from ~$7,500 to ~$75,000 — a gain of +1,000%. A €1,000 investment in January 2020 would be worth approximately €10,000 today. Gold, another safe haven, gained +92.5%.
Important caveat: Bitcoin is not a perfect short-term inflation hedge. In 2022, it crashed 65% while inflation soared. It’s over the long term (5 years or more) that it massively outperforms inflation, thanks to its programmed scarcity (21 million unit cap).
The contrast is stark: while the Livret A earned ~6% cumulatively over 5 years, Bitcoin multiplied the investment by 10. Even accounting for volatility, the long-term risk-adjusted performance is remarkable.
ANTS Breach: 19 Million French Citizens Exposed by a “Stupid” Flaw
The week’s other major story concerns France Titres (formerly ANTS — Agence Nationale des Titres Sécurisés), the agency that manages national ID cards, passports, driver’s licenses, and vehicle registrations for all French citizens.
In mid-April 2026, a hacker using the alias “breach3d” put 18-19 million records up for sale on a cybercrime forum, including: full names, email addresses, phone numbers, dates and places of birth, complete postal addresses, and — most critically — identity certification status confirming the identity was verified by the French state.
The vulnerability exploited is embarrassingly basic: an IDOR flaw (Insecure Direct Object Reference) on the moncompte.ants.gouv.fr API. Simply modifying an identifier in a request granted access to another citizen’s data. The hacker himself called the flaw “really stupid.”
France’s Data Breach Epidemic: A Structural Problem
This breach is part of a catastrophic series:
- France Travail (March 2024): 36.8 million people, including social security numbers — €5M CNIL fine
- Viamedis/Almerys (February 2024): 33 million French citizens (health data)
- Free Mobile (October 2024): 19 million customers + 5 million IBANs — €42M CNIL fine
- SFR (2024): 3.6 million records
The CNIL recorded 5,629 breach notifications in 2024, up 20% from 2023. The verdict is clear: centralized databases are honeypots — they structurally attract attackers. A single point of compromise exposes millions.
![How Does Blockchain Work? Complete Guide to Blockchain Technology [2026]](https://fibo-crypto.fr/wp-content/uploads/2026/02/how-blockchain-works-header-2026.png)
Decentralized Identity: Blockchain as the Solution
The problem is architectural: concentrating identity data of tens of millions of citizens in a single database creates an irresistible target. The solution already exists: Self-Sovereign Identity (SSI), enabled by blockchain technology.
The principle is simple: instead of storing your data on a central server, you keep it on your own device. Using zero-knowledge proofs, you can prove “I am over 18” or “I am a French citizen” without ever revealing your date of birth or address.
Several projects are already building this infrastructure: Polygon ID, ConsenSys (Ethereum), Dock.io. The result? No more centralized database to hack. No more 19-million-record breaches. Every citizen controls their own data.
📚 Glossary
- Inflation: A sustained, generalized increase in prices that reduces the purchasing power of money. Measured in France by INSEE via the Consumer Price Index (CPI).
- Bitcoin: The first decentralized cryptocurrency, created in 2009, limited to 21 million units. Often considered a long-term inflation hedge due to its programmed scarcity.
- Honeypot: In cybersecurity, an attractive target for hackers. Centralized databases containing millions of records are structural honeypots.
- Blockchain: Distributed ledger technology enabling decentralized, transparent, and tamper-proof storage and transmission of information.
- Zero-Knowledge Proof: Cryptographic method allowing one party to prove a statement is true without revealing the underlying data. Key enabler of privacy-preserving identity systems.
Frequently Asked Questions
How much purchasing power have the French lost since 2020?
Cumulative inflation in France has reached approximately 17% since 2020 according to Deutsche Bank. For a household earning the median salary, this represents roughly €110 less in monthly purchasing power. The hardest-hit categories are food (+20% over 2 years) and energy (+33% on average bills).
What data was stolen in the France Titres (ANTS) breach?
The breach exposed 18-19 million records including: full names, emails, phone numbers, dates and places of birth, complete postal addresses, and identity certification status. The IDOR vulnerability allowed access to any citizen’s data by simply modifying an identifier in an API request.
Does Bitcoin really protect against inflation?
Over the long term (5+ years), yes: Bitcoin has gained +1,000% since 2020 versus 17% inflation. But in the short term, correlation can break — in 2022, Bitcoin dropped 65% while inflation surged. It’s a long-term hedge, not instant protection.
How can blockchain prevent massive data breaches?
Decentralized identity (Self-Sovereign Identity) allows citizens to store their data on their own devices rather than in a centralized database. Using zero-knowledge proofs, you can verify your identity without ever exposing personal data. No central database means no massive breach.
Is France's Livret A savings account enough to beat inflation?
No. Between 2020 and 2023, the Livret A delivered negative real returns (interest rate below inflation). Even with the current 1.5% rate and controlled inflation, it cannot compensate for the cumulative erosion of previous years. Diversifying savings across asset classes remains essential.
📰 Sources
This article draws on the following sources:
- Cryptoast – French purchasing power decline: 17% cumulative inflation since 2020
- INSEE – Key inflation data for France (annual figures)
- Clubic – ANTS hacked due to basic flaw, 19 million French citizens affected
- Visual Capitalist – Mapped: Cumulative Global Inflation by Country (2020-2025)
How to cite this article: Fibo Crypto. (2026). 17% Cumulative Inflation in France and ANTS Data Breach. Retrieved April 20, 2026 from fibo-crypto.fr
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