Forcing ERC20Upgradeable when calling transfer() reverts when used with some ERC20 tokens

Lines of code Vulnerability details Some tokens do not implement the ERC20 standard properly but are still accepted by most code that accepts ERC20 tokens. For example Tether USDT's transfer and transferFrom functions do not return booleans as the specification requires, and instead have no retur...

If SChain is Removed Before kill() and getFunds() all Tokens are Locked in the Bridge

Lines of code Vulnerability details Impact If the SChain is removed before all the funds are withdrawn from the bridge they will be permanently locked in the bridge. When a SChain is removed in by the SKALE protocol via the function SchainsInternal.removeSchain the data including the owner will b...