Remove ExpressDefault
ExpressDefault is a Potentially Unwanted Program (PUP) that could cause some issues if it manages to get to your computer. The interesting part is that ExpressDefault is not available on Windows – it is a PUP that works on Macs exclusively. Unfortunately, the number of Mac-compatible intrusive apps has been increasing rapidly in recent years. It is not enough to rely on the basic Mac security measures to keep you safe – it is best to invest in 3rd-party security tools whose protection is much more robust.
When the ExpressDefault is installed, it will immediately manipulate the settings of Safari or other Web browsers. Its goal is to replace the default new tab page and search engine they use in order to promote sites that ExpressDefault is affiliated with. The creators of this PUP are likely to get a fraction of the ad revenue that these sites generate.
Needless to say, having a random app manipulate your browser settings is a red flag. Furthermore, the sites that ExpressDefault promotes tend to be low-quality search engines which might not always work. Even when they work, they are likely to promote ads and sponsored results instead of legit results. If you find ExpressDefault on your Mac, you should try to remove it immediately.
To handle the ExpressDefault removal, we advise using a suitable anti-malware tool, which will ensure the full elimination of this PUP's files.