Always verify the ISO after download:
Wifislax 4.7 is an older release. For modern hardware and the latest security patches, users are generally encouraged to look for the most recent versions (such as Wifislax64 official project page Download- wifislax-4-7-final.iso -666.83 MB-
If no signature exists, cross-check file size (666.83 MB exactly) and compare to community-posted hashes on the official forum. Always verify the ISO after download: Wifislax 4