Yes, Bonjour is a legitimate, signed application from Apple Inc..
: If you do not use any Apple devices or specialized networking software, you can safely uninstall it via Control Panel > Programs and Features to free up background resources.
Bonjour opens UDP port 5353 and listens for multicast traffic. This has security implications: bonjour 3.1.0.1 for windows
A new maintenance release of Bonjour for Windows is now available:
You can download Bonjour 3.1.0.1 for Windows from [insert link here]. Yes, Bonjour is a legitimate, signed application from
It allows Windows to automatically detect printers connected to the network that support AirPrint, without requiring the installation of specific drivers, provided those printers support mDNS.
To understand Bonjour, one must first understand the problem it solves. In the early days of networking, connecting two devices required extensive manual configuration. Users had to input specific IP addresses, subnet masks, and DNS server information to facilitate communication. This was manageable for IT professionals but daunting for the average consumer. This has security implications: A new maintenance release
However, users on . By default, Windows 11 includes a feature called “Local Security Authority (LSA) protection,” which can block older Bonjour components from loading. In some cases, even version 3.1.0.1 is blocked by the operating system’s default security settings. Fortunately, this can be mitigated by upgrading the Bonjour service via Windows Package Manager ( winget ) or by adjusting the LSA protection settings.