Depends on the attack vector. If the concern is inadvertent malware (i.e. an unaware developer incorporating a malicious library etc.) then I'd suspect the pac

Depends on the attack vector. If the concern is inadvertent malware (i.e. an unaware developer incorporating a malicious library etc.) then I'd suspect the package repos would be a bit safer because they tend to act as a low pass filter (active source repos can change very frequently, downstream package repos much less so) and also act as one or more additional sets of eyes on the source code. Some developers can get so focused on getting things done that they can lose sight other aspects of their application. I've heard far more stories about malware making it into developer repos (usually inadvertently) than making it to package repos. I suspect it's partially the relative areas of focus of developers vs package maintainers and partially just having another set of eyes at least glancing at what's going on.