A developer runs pip install. Nothing crashes. No ransomware appears. No antivirus alert fires. Thirty seconds later, a Python process makes an outbound connection to infrastructure nobody on the team recognizes.
Recent 2026 incidents show how quickly this can become a compromise. Malicious PyPI packages have been downloaded and executed by real systems, proving that developer workstations, CI pipelines, and security environments can themselves become targets.
The Typosquatting Trick
Typosquatting is an attack technique where an attacker creates a name that closely resembles a trusted one, hoping users or automated systems will overlook the difference. In software supply chains, this can mean registering a malicious package with a name similar to a popular PyPI dependency.
For example:
