A recorded email choice is not a mailbox already issued | Rapid course Security architecture and engineering

Open, free learning for anyone who wants to protect people and technology. No account is required to read this text or its worked answers.

Lesson map

Lesson 05. Map, example, EX051.

flowchart TD
  A["Decision record selects individual accounts"] --> B["Manager approves the six-month plan"]
  B --> C{"Does the file show mailboxes issued?"}
  C -->|No| D["Keep the choice and the plan line"]
  C -->|Yes| E["That issuance would be its own record"]

A written choice names the work. It does not open the mailboxes.

Logical drawing

chapter 1 record
    choice: individual accounts with shared inbox access
    reason: member queries traceable to the person who answered
loan baseline, both exports
    shared_accounts=0
        |
        +-- that key is the loan system, not the branch email
        +-- the plan still lists the email change
        +-- no mailbox list is in the file

Learning outcomes

After this chapter, you should be able to:

Keep the email decision as a recorded choice.
Tell an approved plan line apart from accounts already issued.
Leave shared_accounts=0 as a loan-system result.

5.1 The record selects a design. It does not show the mailboxes.

Chapter 1 writes Leah's choice: individual accounts that can open one shared inbox, so a member query can be traced to the person who answered. Chapter 4 puts that choice on the six-month plan, and her manager approves the page. A classmate reads the approval as proof the tellers already have those accounts, and points at shared_accounts=0 in the loan export. That key passed in the first loan run and again in the second. It describes the loan system, not the branch email the tellers share. Leah does not invent a mailbox list. The decision and the plan stay. The issuance is not in the file.

5.2 Worked example

Lesson table; scroll horizontally to read all columns →

What someone cites	What the file holds	Decision
The decision record	Individual accounts with shared inbox access	Keep the choice
The manager approves the plan	The email line is still on that page	Keep the line
`shared_accounts=0`	A loan setting that already passed	Leave it on the loan export
"The mailboxes are therefore open."	No issuance record	Refuse

Synthetic case. No mailbox is created in this lesson. The branch email gap stays a recorded choice.

Errors and limits

Leaving the mailboxes unissued does not cancel the accountability reason. It refuses a result the file does not contain.

Apply

EX051 — Which accounts exist? The decision record selects individual accounts with access to a shared inbox. The manager approves a plan that still lists that change. The loan export shows shared_accounts=0. Have the branch mailboxes been issued?
Show marking criteria
Rubric: 3 = the choice and the plan line stay; issuance is not in the file; shared_accounts=0 is the loan system, not the branch email;; 2 = approval is not issuance;; 1 = one of those;; 0 = none.