All of them have varying levels of secure implementation, and services will usually only send high resolution content to devices that can demonstrate (with signed keys) the more secure options.
Including Widevine. Widevine Level 3 is a software based solution that can be used on a variety of platforms, but the space for Widevine Level 1 requires OS and hardware integration (which doesn't include Windows for example, but is available for Android if the OEM does the requisite work).
it's a shame. really don't understand the thinking behind it. it's easy for them to detect and ban shared accounts, but it's also easy enough to rip a decrypted stream, even if it is only at 1x rate. not sure why they bother. I suppose their recompense for piracy comes from those manufacturers willing to pay them for signed keys in exchange for hassle-free compatibility
Including Widevine. Widevine Level 3 is a software based solution that can be used on a variety of platforms, but the space for Widevine Level 1 requires OS and hardware integration (which doesn't include Windows for example, but is available for Android if the OEM does the requisite work).