HUMBLE BOOK BUNDLE: CYBERSECURITY 2019 BY PACKT
20 Cyber Security Books for $15 through humble bundle. Only 6 days left.
https://www.humblebundle.com/books/cybersecurity-2019-packt-books?hmb_source=humble_home&hmb_medium=product_tile&hmb_campaign=mosaic_section_2_layout_index_3_layout_type_threes_tile_index_1_c_cybersecurity2019packt_bookbundle