CallInLoop.bad() (tests/multiple_calls_in_loop.sol#9-13) has external calls inside a loop: destinations[i].transfer(i) (tests/multiple_calls_in_loop.sol#11) Reference: https://github.com/crytic/slither/wiki/Detector-Documentation/#calls-inside-a-loop tests/multiple_calls_in_loop.sol analyzed (1 contracts with 1 detectors), 1 result(s) found Use https://crytic.io/ to get access to additional detectors and Github integration