Is it safe to keep crypto on an exchange?

It depends on the exchange and your situation. Major exchanges like Binance, Coinbase, and Kraken have strong security measures and insurance funds. However, you dont control your private keys, so there is inherent counterparty risk. For large amounts or long-term holding, self-custody is recommended.

What is Proof of Reserves and why does it matter?

Proof of Reserves (PoR) is a cryptographic audit that verifies an exchange holds enough assets to cover all customer deposits. It uses Merkle tree technology so users can verify their balances are included without revealing other users data. After FTX collapse, PoR became essential for exchange transparency.

What is Binance SAFU fund?

SAFU (Secure Asset Fund for Users) is Binance emergency insurance fund. Binance allocates 10% of all trading fees to this fund, which now exceeds $1 billion. If a security breach occurs, SAFU covers user losses. Its stored in a separate cold wallet from operational funds.

How do I know if an exchange is trustworthy?

Check for: 1) Proof of Reserves audits, 2) Security track record, 3) Regulatory licenses, 4) Trading volume and longevity, 5) Insurance funds, 6) Transparent leadership. Avoid new exchanges with unrealistic promises or those based in unregulated jurisdictions.

Should I keep my trading funds on an exchange?

For active trading, keeping funds on a reputable exchange is practical. The convenience and liquidity benefits often outweigh risks for smaller amounts. However, only keep what you need for trading. Move long-term holdings and large amounts to self-custody wallets.

What happens if an exchange gets hacked?

It varies by exchange. Major exchanges like Binance have insurance funds (SAFU) to cover losses. Some exchanges have socialized losses among users. Others (like FTX) filed bankruptcy with users losing funds. This is why choosing a reputable exchange with insurance is critical.

Is my money insured on crypto exchanges?

Most crypto on exchanges is NOT insured like bank deposits. However, top exchanges maintain their own insurance funds. Coinbase holds insurance and USD deposits may be FDIC insured. Binance has the SAFU fund. Always check your specific exchange insurance policy.

How often should I withdraw to self-custody?

Theres no fixed rule, but consider withdrawing: when your balance exceeds your comfort level (often $5,000-$10,000+), after any major profit-taking, monthly/quarterly for regular accumulation, or whenever you wont need to trade for extended periods.

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Guide de sécurité

Est-il sûr de conserver ses cryptos sur un exchange ? 2026

Une analyse complète de la sécurité des exchanges, des incidents passés et des meilleures pratiques pour protéger vos actifs numériques en 2026.

15 min de lecture

Updated: 24 janvier 2026

Réponse rapide

Pour la plupart des utilisateurs, conserver des cryptos sur de grands exchanges comme Binance est relativement sûr - surtout pour le trading actif et les petits montants. Ces exchanges investissent des milliards dans la sécurité, maintiennent des fonds d'assurance et n'ont jamais perdu de fonds clients à cause de hacks.

Cependant, vous ne contrôlez pas vos clés privées, ce qui signifie qu'il existe un risque de contrepartie inhérent. Pour les avoirs importants (10 000 $+) ou le stockage à long terme, l'auto-garde avec un hardware wallet est recommandée.

Vue d'ensemble de la sécurité des exchanges

Les exchanges de cryptomonnaies modernes ont considérablement évolué depuis l'époque de Mt. Gox. Les exchanges de premier plan utilisent désormais des mesures de sécurité de niveau militaire, maintiennent d'importants fonds d'assurance et se soumettent régulièrement à des audits tiers. Comprendre comment les exchanges protègent vos fonds est essentiel pour prendre des décisions éclairées en matière de conservation. For a broader overview of protecting your digital assets, see our Crypto Security Guide.

SAFU (Secure Asset Fund for Users)

Binance allocates 10% of all trading fees to a separate emergency insurance fund. Currently worth over $1 billion.

Proof of Reserves

Cryptographic verification that exchange holds sufficient assets to cover all user deposits. Uses Merkle tree verification.

Cold Storage

Majority of funds stored offline in air-gapped hardware, inaccessible to hackers. Only small portion in hot wallets for withdrawals.

Multi-Signature Wallets

Requires multiple private keys to authorize transactions. Even if one key is compromised, funds remain safe.

Address Whitelist

Only pre-approved withdrawal addresses can receive funds. New addresses require 24-48 hour security hold.

Anti-Phishing Code

Personalized code in official emails helps users identify legitimate communications from the exchange.

Hacks historiques d'exchanges

Comprendre les failles de sécurité du passé aide à évaluer les risques actuels. Même si les incidents majeurs ont fortement diminué, l'histoire des hacks d'exchanges rappelle pourquoi les pratiques de sécurité sont importantes. Learn how to protect yourself in our guide to avoiding crypto scams.

Mt. Gox

2014

850,000 BTC (~$450M)

Perdu

Largest Bitcoin exchange hack. Poor security practices and lack of proper audit led to gradual theft over years.

Statut de récupération :Partial - Ongoing legal proceedings

Bitfinex

2016

120,000 BTC (~$72M)

Perdu

Multi-signature wallet compromise. Exchange socialized losses across all users.

Statut de récupération :Users compensated with BFX tokens

Coincheck

2018

$530M in NEM

Perdu

Hot wallet security failure. NEM tokens stored in a single hot wallet.

Statut de récupération :Fully compensated by Coincheck

FTX

2022

$8B+ (Fraud)

Perdu

Not a hack but fraud/mismanagement. Customer funds used for risky investments.

Statut de récupération :Ongoing bankruptcy proceedings

KuCoin

2020

$280M

Perdu

Hot wallet private keys compromised. Exchange responded quickly.

Statut de récupération :84% recovered within weeks

Leçon clé tirée de FTX

FTX n'était pas un hack - c'était une fraude. Même avec une bonne sécurité, les exchanges peuvent échouer à cause d'une mauvaise gestion. C'est pourquoi la Proof of Reserves et la supervision réglementaire sont désormais considérées comme essentielles. Choisissez toujours des exchanges avec des audits de réserves transparents. Read our Phishing Scams Guide to recognize common crypto fraud tactics.

Explication de la Proof of Reserves

Qu'est-ce que la Proof of Reserves ?

La Proof of Reserves (PoR) est une méthode d'audit cryptographique qui permet aux exchanges de prouver qu'ils détiennent suffisamment d'actifs pour couvrir tous les dépôts clients sans révéler d'informations sensibles sur les comptes individuels.

Uses Merkle tree technology for privacy
Allows individual balance verification
Third-party auditors verify totals
Published regularly (often monthly)

Comment vérifier vos fonds

1Rendez-vous sur la page Proof of Reserves de votre exchange
2Trouvez l'ID unique de votre enregistrement de feuille Merkle
3Utilisez l'outil de vérification pour confirmer l'inclusion
4Comparez les soldes des wallets on-chain avec les déclarations

Grands exchanges avec Proof of Reserves

BinanceCoinbaseKrakenOKXBybitBitgetKuCoin

Quand conserver ses cryptos sur un exchange

Bonnes raisons d'utiliser la conservation sur exchange

Active day trading or frequent transactions
Using exchange-specific features (staking, earn, futures)
Smaller amounts under $5,000
New to crypto and learning the space
Need quick access to sell during volatility
Dont trust yourself with seed phrase security

Avantages des exchanges

Forte liquidité pour des transactions instantanées
Équipes de sécurité professionnelles 24h/24 et 7j/7
Les fonds d'assurance couvrent les pertes potentielles
Récupération du compte si vous perdez votre mot de passe
Passerelles fiat intégrées pour dépôts et retraits
Aucun frais de gas pour les transferts internes

Quand passer à un wallet en auto-garde

Passez à l'auto-garde quand...

Holdings exceed $10,000 (your risk tolerance)
Planning to hold long-term (1+ years)
You understand seed phrase management
Concerned about exchange counterparty risk
Want to participate in DeFi or airdrops
Live in region with uncertain regulations

Risques de conservation sur exchange

No private keys = not truly your crypto
Exchange bankruptcy could freeze funds
Government seizure or sanctions possible
Withdrawal limits during market crashes
Account could be suspended without warning
Target for hackers (large honey pot)

L'approche hybride (recommandée)

La plupart des utilisateurs expérimentés adoptent une stratégie hybride : ils gardent les fonds de trading sur des exchanges réputés, mais déplacent la majorité de leurs avoirs en auto-garde. Une répartition courante : See our Self-Custody Guide for a step-by-step walkthrough.

20%

Plateforme (Trading)

70%

Hardware Wallet

10%

Hot Portefeuille (DeFi)

Comparatif de sécurité des meilleurs exchanges

Plateforme	Assurance	Stockage à Froid	Score
Binance	$1B+ SAFU	90%+	95/100
Coinbase	$255M Insurance	98%	92/100
Kraken	Proof of Reserves	95%	90/100
OKX	Reserve Fund	95%	88/100
Bybit	Insurance Fund	90%	85/100

For a full comparison of fees, features, and sign-up bonuses, check our Best Crypto Exchanges 2026 ranking.

Fonds SAFU de Binance - Protection de référence dans l'industrie

Le Secure Asset Fund for Users (SAFU) est le plus grand fonds d'assurance de l'industrie crypto, dépassant $1 billion. Binance alloue 10 % de tous les frais de trading à ce fonds, stocké dans un cold wallet séparé. Learn how to maximize your savings with our Binance Referral Code Guide.

Visualisation de l'évaluation des risques

Facteur	Risque faible	Risque moyen	Risque élevé
Amount Stored	Under $1,000	$1,000 - $10,000	Over $10,000
Trading Frequency	Daily trader	Weekly trader	Long-term holder
Exchange Reputation	Top 5 by volume	Top 20 by volume	Small/new exchange
Jurisdiction	Regulated market	Mixed regulation	Unregulated
Security Features	All features enabled	Basic 2FA only	No security features

Évaluation : Consider a hybrid approach: keep trading funds on exchange, move majority to self-custody. Review your security settings.

Checklist des meilleures pratiques de sécurité

Votre score de sécurité0%

Low security score. Please address the unchecked items.

Account Security

Monitoring

Best Practices

Questions fréquentes

People-first next steps

Exchange checks first, then custody boundary, seed phrase backup, small-transfer verification, and recovery boundary

Start with the venue, set the custody boundary, back up the seed, verify one small withdrawal on the exact route, review the recovery boundary, and only then compare hardware wallet fit if colder storage still matches your plan.

Venue checks

Check the venue before you move a larger balance

Check fees, withdrawal rules, proof of reserves, 2FA, and whitelist settings before you leave funds parked.

Meilleurs exchanges crypto 2026 : Comparaison complète et classements

Check fees, withdrawal rules, proof of reserves, and 2FA before you move a larger balance off or onto the venue.

Check exchange access

Wallet boundary

Set the line between exchange funds and self-custody

Keep only active money online and move long-term holdings to a wallet you control.

Retirer ses cryptos d’un exchange : comment utiliser un portefeuille en self-custody en 2026

Set the wallet boundary before you park more funds.

Set custody boundary

Seed backup

Back up the seed phrase before you fund the wallet

Store the seed phrase offline and verify you can read it back before you move a larger balance.

Qu’est-ce que le stockage de phrase de récupération ? Les meilleures plaques métalliques testées en 2026

Back up the seed phrase before the first send.

Back up seed phrase

Withdrawal verification

Verify one withdrawal before you move a larger balance

Verify the address, memo, and network with a small transfer before anything meaningful moves.

Comment transférer de l'USDT de Binance vers MetaMask (frais réduits) 2026

Verify the withdrawal path with a small transfer.

Verify small transfer

Recovery

Review the recovery boundary before a transfer goes wrong

Confirm what can be recovered, what cannot, and how to respond if the network is wrong.

Comment récupérer des fonds envoyés sur le mauvais réseau en 2026

Know the recovery boundary before anything goes wrong.

Review recovery boundary

Optional security and hardware follow-up

Review hardware wallet fit only if colder storage fits your plan

Use this optional check after the basics are in place and before moving long-term holdings into colder storage.

Meilleurs hardware wallets 2026 : Ledger vs Trezor vs SafePal — Comparaison complète

Review hardware wallet fit only after the basics and recovery boundary are clear.

Review hardware wallet fit

Code de parrainage

TRADEOFF20

Vérifie les conditions de frais TRADEOFF20 avant ton premier trade

S'inscrire maintenant

Code de parrainage

TRADEOFF20

Vérifie les conditions de frais TRADEOFF20 avant ton premier trade

S'inscrire maintenant