Years 9–10 Digital Systems Crossword: Software supply chain vulnerabilities and Threat modelling and security responses (Modules 70–79)
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Crossword
Read each clue and write the matching term in the grid. Numbers in brackets show the letters in each word.
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Across
- 1. A diagram that shows how data moves between users, processes, data stores and external services in a system, using labelled arrows for each ______. Word 2 of: data ____ diagram (4)
- 3. A ______ with one row per threat. Columns record the asset, threat, vulnerability, risk rating and chosen control, e.g. a school app storing student data. Word 3 of: threat model _____ (5)
- 5. A measure that reduces risk by preventing an attack, detecting it or helping recovery. Controls can be technical, physical or procedural, and layering several works best. Word 1 of: ________ control (8)
- 6. Word 1 of the term in 4 Down: _____ ________ (5)
- 8. Word 1 of the term in 7 Down: ______ ______ chain ____ (6)
- 9. Word 2 of the term in 7 Down: ______ ______ chain ____ (6)
Down
- 2. Risk is how likely a threat is to succeed combined with how much harm it would cause. Rate each as low, medium or high to decide which risks matter most. Word 2 of: ____ = __________ x impact (10)
- 3. A diagram with the attacker's goal at the top, branching into the different ways to reach it. OR branches are alternatives, AND branches are all needed. Word 2 of: attack ____ (4)
- 4. A line on a diagram where data passes between parts of a system with different levels of ______, such as from a user's device to a server. Threats often cluster here. Word 2 of: _____ ________ (8)
- 7. Use fewer, trusted dependencies, pin versions, verify integrity and scan for known vulnerabilities so a weak link in code you rely on cannot harm your system. Word 4 of: ______ ______ chain ____ (4)
Answer Key
Years 9–10 Digital Systems · Modules 70–79
1F
2L
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W
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K
3T
A
4B
L
E
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L
5S
E
C
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Y
E
N
H
D
O
6T
7R
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8R
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D
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C
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9S
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P
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K
Across
1FLOW — A diagram that shows how data moves between users, processes, data stores and external services in a system, using labelled arrows for each ______. Word 2 of: data ____ diagram
3TABLE — A ______ with one row per threat. Columns record the asset, threat, vulnerability, risk rating and chosen control, e.g. a school app storing student data. Word 3 of: threat model _____
5SECURITY — A measure that reduces risk by preventing an attack, detecting it or helping recovery. Controls can be technical, physical or procedural, and layering several works best. Word 1 of: ________ control
6TRUST — Word 1 of the term in 4 Down: _____ ________
8REDUCE — Word 1 of the term in 7 Down: ______ ______ chain ____
9SUPPLY — Word 2 of the term in 7 Down: ______ ______ chain ____
Down
2LIKELIHOOD — Risk is how likely a threat is to succeed combined with how much harm it would cause. Rate each as low, medium or high to decide which risks matter most. Word 2 of: ____ = __________ x impact
3TREE — A diagram with the attacker's goal at the top, branching into the different ways to reach it. OR branches are alternatives, AND branches are all needed. Word 2 of: attack ____
4BOUNDARY — A line on a diagram where data passes between parts of a system with different levels of ______, such as from a user's device to a server. Threats often cluster here. Word 2 of: _____ ________
7RISK — Use fewer, trusted dependencies, pin versions, verify integrity and scan for known vulnerabilities so a weak link in code you rely on cannot harm your system. Word 4 of: ______ ______ chain ____