"Explicit consent" means obtaining clear and direct permission from someone before engaging in a certain activity or collecting their personal information. Full definition
And what's perhaps more important: This security degradation would be enforced without explicit consent from users. (bitcoinmagazine.com)
None may be reproduce in any manner or form for private or commercial gain without explicit consent from the authors and the publisher. (ldeo.columbia.edu)
Please do not share my resources with others unless given explicit consent by me. (tes.com)