Detecting Physical Attacks · 检测物理攻击
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| motion sensors/ˈməʊʃn ˈsensəz/ | 运动传感器 | yùn dòng chuán gǎn qì |
| points of ingress and egress/pɔɪnts ɒv ˈɪŋɡres ænd iːˈɡres/ | 出入口 | chū rù kǒu |
Controls that detect
- Cameras record activity and help after-incident investigations.
- Security guards respond to what they see.
- Motion sensors 运动传感器 alert staff to movement.
用于检测的控制
- 摄像头记录活动并有助于事后调查。
- 保安对所见做出响应。
- 运动传感器(motion sensors)向员工报告有移动。
Placement matters
- Cameras belong at points of ingress and egress 出入口 (entrances/exits).
- Motion sensors work best in low-traffic areas like server rooms.
- In a busy hallway they cause constant false alarms.
位置很重要
- 摄像头应放在出入口(points of ingress and egress)(进口/出口)。
- 运动传感器在低流量区域(如服务器机房)效果最好。
- 在繁忙走廊里它们会造成持续的误报。
Good sensor placement or bad? · 传感器放置得好还是不好？
Motion sensors belong in low-traffic sensitive areas; a busy hallway causes false alarms. · 运动传感器应安装在低流量的敏感区域；繁忙的走廊会导致误报。
Where are cameras most useful? · 摄像头在哪里最有用？
Entrances and exits capture who comes and goes. · 入口和出口能记录谁进谁出。
A guard who walks a route rather than staying still is a ____ guard. · 沿着路线巡逻而不是静止不动的守卫是____守卫。
Patrolling guards are harder to plan around. · 巡逻守卫更难被预测。
Which controls DETECT physical attacks? (Choose all) · 哪些控制措施能检测物理攻击？（多选）
Encryption protects data, it does not detect intruders. · 加密保护数据，但不检测入侵者。
Guards and logs
- Stationary guards protect a fixed high-value point.
- Patrolling guards are harder for an adversary to plan around.
- Reviewing door-open times in logs can reveal piggybacking.
保安与日志
- 固定保安保护一个固定的高价值点。
- 巡逻保安让对手更难预先规划。
- 查看日志中的开门时长能揭示尾随。
A motion sensor in a busy hallway triggers so often that staff stop trusting it. Placing detection controls where alerts are meaningful is as important as having them at all.
繁忙走廊里的运动传感器触发得太频繁,以致员工不再信任它。把检测控制放在警报有意义的地方,和拥有它们本身同样重要。
Why put a motion sensor in a server room, not a busy hallway? · 为什么把运动传感器放在服务器室而不是繁忙的走廊？
In a busy area, false alarms make people ignore it. · 在繁忙区域，误报会让人们忽略它。
A door that stays open unusually long can be a sign of piggybacking. · 长时间开启的门可能是搭便车的迹象。
Long open times suggest an extra person slipped through. · 长时间开启表明有人悄悄溜过。
An entry log shows a door normally opens for 2 seconds, but last night it stayed open for 15 seconds. That long open time is a clue that someone piggybacked through behind an authorised employee.
一份进入日志显示某道门通常开2秒,但昨晚它开了15秒。那么长的开门时间是有人跟在授权员工身后尾随进入的线索。
Detect physical attacks with cameras, guards, motion sensors, and alert employees. Placement decides usefulness: cameras at entrances/exits, sensors in low-traffic zones. Even door-open times in logs can expose piggybacking.
用摄像头、保安、运动传感器和警觉的员工来检测物理攻击。位置决定有用性:摄像头在进出口,传感器在低流量区。甚至日志中的开门时长也能揭露尾随。