@inproceedings {217533, author = {Jonathan P. Chapman}, title = {{SAD} {THUG}: Structural Anomaly Detection for Transmissions of High-value Information Using Graphics}, booktitle = {27th USENIX Security Symposium (USENIX Security 18)}, year = {2018}, isbn = {978-1-939133-04-5}, address = {Baltimore, MD}, pages = {1147--1164}, url = {https://www.usenix.org/conference/usenixsecurity18/presentation/chapman}, publisher = {USENIX Association}, month = aug }