Dear PyPI users: To increase the security of PyPI downloads, we're beginning to introduce two-factor authentication (2FA) as a login security option, and want project maintainers and owners to start testing it. Starting this Friday, May 3rd, you'll be able to use 2FA on Test PyPI http://test.pypi.org/ . And if you'd like to try 2FA on official PyPI https://pypi.org , please fill out this Google form https://docs.google.com/forms/d/e/1FAIpQLSfRmXhkfAL-LgLfcMdzTG7iIaSwPo-pyzkg... so we can invite you to the private beta, which we plan to hold 3-20 May. More details at https://wiki.python.org/psf/WarehousePackageMaintainerTesting . We expect to end this testing period on May 20th, then enable the optional 2FA feature for all PyPI users, and move on to working on WebAuthn support. Thanks to the Open Technology Fund for funding this work. More progress reports at https://wiki.python.org/psf/PackagingWG . -Sumana Harihareswara on behalf of the PyPI team