The 'speed3' package in the npm ecosystem is identified as containing malicious code that fully compromises affected systems. According to the source advisory, any computer with this package installed should be considered fully compromised, necessitating immediate rotation of all secrets and keys from a separate, secure machine. The advisory warns that simply removing the package may not remove all malicious software introduced by the compromise, indicating potential persistence mechanisms.

Full system compromise on any computer with the 'speed3' package installed. Attackers may gain unauthorized access to all stored secrets and keys, potentially leading to further breaches. The persistence of malicious software beyond package removal increases the risk and complexity of remediation.

Remove the 'speed3' package immediately from all affected systems. Rotate all secrets and keys from a different, uncompromised computer to prevent further unauthorized access. Due to the likelihood of persistent compromise, consider rebuilding affected systems or performing thorough forensic analysis to ensure complete removal of malicious components.