The useful answer: transaction inclusion and finality are different measures, and neither one tells a user that the executed result matched what they meant to authorize. The Ethereum Foundation's Trillion Dollar Security initiative frames this as transaction uncertainty, a user-experience risk it lists alongside blind signing, and says it is exploring native transaction assertions as a next step to enforce a transaction's final outcome, alongside Clear Signing.
That distinction matters for anyone watching chain upgrades, wallets or payment tools. A signature commits to a request, but the outcome depends on the code and state it encounters during execution. Ethereum executes exactly what you authorize, without judging whether the result is what you wanted.
Two questions that get conflated
When a transaction is included, the network has processed a request. When it reaches finality, the record is settled by the chain's rules. Both are statements about the request, not about the economic or safety result. A transaction can be validly authorized and still produce a result the signer never intended.
The source describes the problem starting with how Ethereum works: a signature commits to a request, and its outcome depends on the code and state it meets. Users have lost large sums either because they approved something different from what they believed, or because the request they intended still produced an unwanted result.
The intent mismatch case
The first failure is an intent mismatch. The source cites the Bybit incident and the BadgerDAO attack. In both, a compromised frontend supplied a signing request that differed from what users believed they were approving. Bybit's signers authorized replacing the Safe's implementation contract, while Badger users granted the attacker permission to spend their tokens.
Here the signature did exactly what it said. The gap was between the request shown and the request signed. Clear Signing work addresses how that request is displayed, but the signed object itself remains the controlling artifact.
When the request is genuine but the result is not
The second failure is harder to describe with a signature check. The signer approves the request they were shown, but its limits or the state it runs against still allow a result that conflicts with their economic goal or a standing safety policy. The source describes an Aave and CoW collateral swap in which a user asked to swap about $50.4 million of aEthUSDT for aEthAAVE.
AAVE liquidity was far too thin for a trade of that size. CoW's gas ceiling also rejected the more complex quotes during verification, leaving one verified quote of roughly 329 aEthAAVE. The interface displayed a 99.9 percent price impact warning and required the user to confirm that the entire value could be lost.
That case illustrates the measurement problem. The transaction could have been included, could have finalized, and still delivered a result far from the stated intent. Warnings existed, but a warning is disclosure, not enforcement.
What native transaction assertions would add
The source positions native transaction assertions as a way to protect users where today's defenses stop, and lays out design choices behind them. It names EIP-7906 (Transaction Assertions via State Diff Opcode) as one possible approach. In plain terms, the mechanism concerns enforcing a transaction's final outcome rather than only what the request looked like when signed.
For operators and wallet teams, this reframes a familiar checklist. Displaying a readable prompt is useful, but the more basic question is whether the requested result is enforced at settlement. The source's framing puts the individual at the center of the equation, while noting that safety also depends on the state the transaction executes against.
A worked comparison for the reader
Consider two hypothetical transactions, both labeled Hypothetical, to separate these measures.
| Measure | Hypothetical case A | Hypothetical case B |
|---|---|---|
| Included in a block | Yes | Yes |
| Reaches finality | Yes | Yes |
| Request matched what the signer believed | Yes | No |
| Result matched the signer's economic goal | Yes | No |
Case B could describe either failure category. The point is that inclusion and finality line up in both rows, which shows they are poor proxies for intent. The source's examples sit in the two lower rows: a compromised request in the Bybit and Badger cases, thin liquidity and rejected quotes in the Aave and CoW case.
A short checklist for teams reading about the proposal: identify whether the transaction assertion is described as a proposal, an approval, or an implemented feature; treat Clear Signing as a display-layer defense; and check whether the write-up claims a result was enforced rather than merely warned.
What the source does not say
- It does not say whether native transaction assertions are implemented, scheduled, or only being explored.
- It does not give user counts, loss totals, or measurable effects on transaction failure rates.
- It does not state how assertions would interact with finality rules or with existing wallet flows in practice.
- It does not make any claim about token prices or market effects.
- It does not provide a date for the Aave and CoW collateral swap or the Bybit and Badger incidents beyond the article's published date.
- It does not establish that Clear Signing alone solves the second failure category.
Read closely, the source is a problem statement and a design discussion. It separates two failures, shows that signature validity is not the same as outcome, and names one proposed mechanism. The useful takeaway for readers is to keep inclusion, finality, and result in separate columns when evaluating any upgrade claim.