According to various online sources, estimated length in miles of the Great Wall of China: Anywhere from1,500 to 4,500According to archaeologists, actual length in miles of the system of walls that make up the Great Wall of China: UnknownNumber of years the Great Wall was under construction: More than 2,000Other components of the Great Wall: Walled villages, gates, crenellated towers Most recent year in which a previously unknown part of the Great Wall was found: 2003Miles of wall discovered in 2001 and 2002, combined: 360 Adjective used in National Geographic to describe the Great Wall’s effectiveness as a defensive barrier: SpottyHadrian’s WallLength in miles of Hadrian’s Wall, in modern-day Northern England: 73For every three miles of Hadrian’s Wall built of stone, approximate number of miles built of turf: 2Number of years it took Rome to construct Hadrian’s Wall: 6Number of forts built on or near Hadrian’s Wall: 16 Other components of Hadrian’s Wall: Ditches, turrets, mile castles (gateways)According to scholars, chances Hadrian’s Wall could have withstood a concentrated attack from “barbarians” to the north: MinimalBerlin WallApproximate length in miles of the Berlin Wall: 96 Approximate number of watchtowers: 302Number of times the Berlin Wall was rebuilt: 3Other components of the Berlin Wall: Barbed wire, trenches, fences, bunkers Fatality rate on the Berlin Wall during its 28-year operation: One person killed every 54 daysAccording to a 2004 poll, percentage of West Germans who said they wished East Germans were “cut off again by the Berlin Wall”: 24Percentage of East Germans who said they wanted “out of a united Germany”: 12The West Bank & KashmirApproximate length planned for the wall in the West Bank and the wall in Kashmir, respectively: 217 miles, 500 milesApproximate cost, respectively, of those walls: $200 million, $300 millionComponents of the new walls: Ditches, barbed wire, video surveillance, motion detectionTerm used by officials who built both barriers to describe the walls: Fence* * *According to a Robert Frost poem, what good fences make: Good neighborsPhrase used to describe barriers separating Catholic and Protestant neighborhoods in Belfast, Northern Ireland: Peace Walls Related content feature Top cybersecurity M&A deals for 2023 Fears of recession, rising interest rates, mass tech layoffs, and conservative spending trends are likely to make dealmakers cautious, but an ever-increasing need to defend against bigger and faster attacks will likely keep M&A activity steady in By CSO Staff Sep 22, 2023 24 mins Mergers and Acquisitions Mergers and Acquisitions Mergers and Acquisitions brandpost Unmasking ransomware threat clusters: Why it matters to defenders Similar patterns of behavior among ransomware treat groups can help security teams better understand and prepare for attacks By Joan Goodchild Sep 21, 2023 3 mins Cybercrime news analysis China’s offensive cyber operations support “soft power” agenda in Africa Researchers track Chinese cyber espionage intrusions targeting African industrial sectors. By Michael Hill Sep 21, 2023 5 mins Advanced Persistent Threats Cyberattacks Critical Infrastructure brandpost Proactive OT security requires visibility + prevention You cannot protect your operation by simply watching and waiting. It is essential to have a defense-in-depth approach. By Austen Byers Sep 21, 2023 4 mins Security Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe