Low level call in Sender.send(address) (tests/low_level_calls.sol#5-7): - _receiver.call.value(msg.value).gas(7777)() (tests/low_level_calls.sol#6) Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#low-level-calls tests/low_level_calls.sol analyzed (2 contracts with 1 detectors), 1 result(s) found Use https://crytic.io/ to get access to additional detectors and Github integration