Web3 Security Trends

Updated 31 Oct 2026About these numbers
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01 Oct 2025–30 Sep 2026compared with 01 Oct 2024–30 Sep 2025
Reported loss$2.92B ↓ 68% vs prior period 338/356 loss amounts reported
Reported attacks356 ↑ 73% vs prior period
Median incident loss$459K ↓ 30% vs prior period
Largest incident$387.0M13% of known lossBitget

Attacks and losses over time

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Reported loss and attack counts from 2025-10-01 to 2026-09-30.Reported loss (USD)Attack count $0 $500M $1B 0 25 50 Oct 2025: $47.9M reported loss; 14 attacksOct 2025Nov 2025: $275.7M reported loss; 16 attacksNov 2025Dec 2025: $75.6M reported loss; 19 attacksDec 2025Jan 2026: $390.2M reported loss; 24 attacksJan 2026Feb 2026: $24.0M reported loss; 12 attacksFeb 2026Mar 2026: $42.3M reported loss; 26 attacksMar 2026Apr 2026: $649.6M reported loss; 35 attacksApr 2026May 2026: $79.7M reported loss; 44 attacksMay 2026Jun 2026: $80.4M reported loss; 36 attacksJun 2026Jul 2026: $250.3M reported loss; 41 attacksJul 2026Aug 2026: $260.9M reported loss; 47 attacksAug 2026Sep 2026: $742.6M reported loss; 42 attacksSep 2026

Top 5 incidents: 54% of loss

View chart as a table
PeriodReported lossAttacksKnown amounts
Oct 2025$47.9M1414 of 14
Nov 2025$275.7M1616 of 16
Dec 2025$75.6M1919 of 19
Jan 2026$390.2M2424 of 24
Feb 2026$24.0M1212 of 12
Mar 2026$42.3M2623 of 26
Apr 2026$649.6M3534 of 35
May 2026$79.7M4442 of 44
Jun 2026$80.4M3636 of 36
Jul 2026$250.3M4140 of 41
Aug 2026$260.9M4740 of 47
Sep 2026$742.6M4238 of 42

What changed

  1. Compared with the previous period, reported loss fell by $6.09B while incident count rose by 150.

    See incidents

  2. Bitget drove 13% of known reported loss in this period.

    Open incidentSource

  3. Spot Price Manipulation was the most frequently recorded attack method, appearing in 16 incidents.

    Open incident

Attack methods

  1. Spot Price Manipulation16
  2. Incorrect Share Accounting12
  3. Improper Access Control11
  4. Phishing8
  5. Private Key Compromised8
  6. Access Control7
  7. Arithmetic Error6
  8. Swap Logic Flaw6
  1. Access Control / Hot Wallet Key Compromised$403.7M
  2. Phishing$360.5M
  3. Other / Unbacked Cross-Chain Mint$323.1M
  4. Access Control / Compromised Admin + Fake Token Price Manipulation / Proxy Upgrade Hijack$295.0M
  5. Access Control / Cross-Chain Message Spoofing$293.0M
  6. Composable Stable Pools Exploit / Access Control / Rounding Error$128.0M
  7. Oracle Issue / Donation Attack$124.5M
  8. Other / Weak Key Generation$116.0M

Affected sectors

207 uncategorized incidents excluded

  1. DeFi applications112
  2. Other17
  3. Bridges14
  4. Centralized services4
  5. Wallets2
  1. DeFi applications$714.0M
  2. Centralized services$389.0M
  3. Other$108.1M
  4. Bridges$59.5M
  5. Wallets$8.6M

Affected chains

38 unnamed-chain incidents excluded. Multi-chain counts and losses overlap.

  1. Ethereum119
  2. BNB Chain64
  3. Base37
  4. Arbitrum29
  5. Solana19
  6. Polygon17
  7. Tron7
  8. Bitcoin7
  9. Sui6
  10. Optimism5
  1. Ethereum$1.13B
  2. Arbitrum$503.4M
  3. Tron$428.0M
  4. Solana$424.0M
  5. zcash$387.0M
  6. XRP$387.0M
  7. liquid$320.0M
  8. Base$203.0M
  9. Bitcoin$144.9M
  10. Polygon$136.0M

Incidents behind this view

356 matching records

Full incident database
DateIncident and attack methodChainReported lossEvidence
23 Feb 2026DGLDInfinite Mint and Dump / Infinite MintBase$250KSource
22 Feb 2026LAXO TokenFlash Loan Attack / Incorrect Share AccountingBNB Chain$190KSource
22 Feb 2026Blend ProtocolOracle Issue / Price Oracle Manipulation / Spot Price ManipulationStellar$11.0MSource
21 Feb 2026IoTeXPrivate Key Compromised / Access Control / Validator Key CompromisedEthereum$4.4MSource
20 Feb 2026Veil Cashmisconfigured Groth16 verifier / Proof Verifier BugBase$5KSource
15 Feb 2026Moonwell LendingcbETH Collateral Exploit / Oracle Issue / Oracle MisconfigurationBase$1.8MSource
14 Feb 2026SOF TokenFlash Loan AttackNot recorded$249KSource
01 Feb 2026CrossCurveSpoofed Cross-Chain Messages / Other / Cross-Chain Message SpoofingNot recorded$3.0MSource
31 Jan 2026Step FinancePrivate Key Compromised / Access ControlSolana$40.0MSource
30 Jan 2026GyroscopeOtherNot recorded$807KSource
29 Jan 2026Revert LendStaked Collateral Exploit / Other / Staking Logic FlawBase$50KSource
28 Jan 2026HoldstationAccess ControlNot recorded$192KSource
28 Jan 2026XPlayerFlash Loan AttackNot recorded$717KSource
27 Jan 2026PGNLZ tokenFlash Loan Attack / Incorrect Share AccountingBNB Chain$100KSource
26 Jan 2026Velar PerpsPredictable Oracle Updatemezo$401K
25 Jan 2026Aperture FinanceOther / Token Approval AbuseBase, BNB Chain, Ethereum$3.7MSource
25 Jan 2026HypurrFiOtherNot recorded$84KSource
25 Jan 2026SwapNetUnlimited Approval Exploit / Other / Frontend CompromiseBase, Ethereum$13.4MSource
21 Jan 2026SagaInfinite Mint and Dump / Other / Infinite Mintsaga$7.0MSource
20 Jan 2026SynapLogicAccess Control / UnknownBase$144KSource
20 Jan 2026MakinaFlashloan Price Oracle Attack / Flash Loan Attack / Spot Price ManipulationEthereum$4.2MSource
17 Jan 2026Meteora DAMM V2Impersonation ScamSolana$1.5M
13 Jan 2026NYC MemecoinRugpullNot recorded$3.4MSource
12 Jan 2026Yo YieldOther / Slippage Exploit / Missing Slippage CheckEthereum$3.6MSource
10 Jan 2026FutureSwapWithdrawal Logic FlawArbitrum$395K

About these numbers

Updated 31 Oct 2026, 11:59 UTC

Incident selection

This dashboard covers reported incidents, not every attack or the relative safety of a chain. Each verified canonical incident is counted once. Unverified, rejected, merged duplicate, pending-review, and future-dated records are excluded. Late reports and corrections can change recent periods.

Loss and outliers

Reported loss sums known positive USD amounts. Missing amounts stay unknown, not zero. Median incident loss uses only incidents with a known amount. “Exclude the largest incident” removes the largest known-loss event from both the selected and comparison periods.

Missing classifications

Sector and chain labels come from the incident record. Uncategorized incidents are excluded from sector charts; incidents without a named chain are excluded from chain charts. A multi-chain incident appears under each named chain, so those counts overlap.

Limitations

Reliable malicious-actor attribution is not consistently available, so this page does not rank actor groups. Timing alone cannot show that AI caused an attack, so there is no AI-involvement metric. Confirmed returned funds are too sparsely documented for a recovery trend: 2 of 356 incidents in this view have comparable reviewed accounting, totaling $1.9M.

Cite this view

Smart Contract Hacking (SCH), “Web3 Security Trends: 2025-10-01 to 2026-09-30,” method 2026-09-15.1, view d3093a3f2713, accessed 31 October 2026. https://smartcontractshacking.com/tools/web3-security-trends?page=12

Live view. Figures may change as incident records are updated.