To safely obtain Yosemite 10.10.5 without risking malware from third-party "warez" sites:
For a safe download, avoid third-party "DMG" links found on search engines, as they often contain adware. Use the official Apple Support link to download the installer App, and use the Terminal command if you require bootable media. mac os x yosemite 1010 5 download dmg link
: If the download links do not trigger immediately, try using the Safari browser To safely obtain Yosemite 10
Avoid third-party torrent sites or random forums offering a “direct DMG link.” Many contain modified kernels, spyware, or corrupted disk images. Only trust signed Apple sources. Only trust signed Apple sources
Because Apple no longer prominently features Yosemite on its main macOS download page, you must know the exact method to obtain the or the .app installer that can be converted into a DMG.
Apple provides official download links for older macOS versions, including OS X Yosemite 10.10
Another point: Distributing Apple OS images through third-party sites is a legal gray area and could be unethical. So advising them to use official sources is important. However, the user is asking for direct DMG links, which might not be available via Apple anymore unless they use archived methods.