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The same ticker
Two tokens can share a name. One is the issuer's contract. The other is a bridge's stand-in.
The ticker is not the contract.
A worked case
A wallet shows the same letters on two chains. One is the issuer. One is a bridge. The bridge fails. The letters remain. The person had not opened the contract address, which was the only line that differed.
Native and bridged
A dollar token on its home chain is the issuer's contract, with the issuer's freeze key. A version on another chain can be a bridge's token that only claims to match.
The copy
A wallet can show both as the same ticker. The contract address is the difference. The bridge can fail while the ticker still looks familiar.
USDC is not a mood
USD Coin is a token from Circle, with a contract, a freeze function, and a chain it was issued on. A token on some other chain that uses the same letters can be a bridged representation. The bridge has its own keys. Circle's freeze key and the bridge's keys are not the same pen.
Wallets shorten this to a ticker. The contract address is the sentence the ticker deleted.
Read it yourself
These links are the record. They are not a recommendation, and they are not instructions. A news story or a court paper can still be wrong about a detail. The check does not change because a famous name is in the story.
Apply the check
Open a question. The line is about this topic. It is not a verdict that anything is safe.
The bridge, if it failed. The issuer, only on the native contract.
Whichever contract you hold.
The bridge, for the stand-in. The issuer, for the native token, if they have a freeze key.
Check yourself
Write it in your own words. The course's answer opens after that. Nothing is sent.
After this you can read the contract, not the ticker.