CVV numbers are also known as CSC numbers (Card Security Code), as well as CVV2 numbers, which are the same as CVV numbers, except that they have been generated by a 2nd generation process that makes them harder to guess.
a you can prune healthy yews taxus spp back quite severely with no problem you can easily reduce their size by one half to three quarters such severe pruning is best done in early spring so they have spring and summer to recover they will respond by throwing up a lot of new growth
a yews can live a long time but you need to prune them correctly and i mean prune not trim don t shear the outside of the shrub like you are trimming a moustache leave the surface of the shrub alone instead take a long handled pruner reach inside and cut some of the longest branches back to where they connect to another branch in the interior of the shrub