OpenCyber Academy
Rapid course · Lesson 9 · English
Course code: OCA-013Lesson 09: OCA-013-A009

Deleting the zip is not a second print

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 09. Map, example, EX055.

flowchart TD
  Z["old-backup.zip in the export"] --> P["Third failure line"]
  R["Retention check with Mark"] --> X["Prose: the zip was deleted"]
  P --> Q{"Does deletion edit the triple?"}
  X --> Q
  Q -->|No| K["The line stays"]

Removal from storage is not removal from the evidence list.

Logical drawing

still printed:  old-backup.zip: anyone-with-link
prose only:     deleted after the retention check
not recorded:   a sanitization method, a recycler, a date

Learning outcomes

After this chapter, you should be able to:

  1. Keep old-backup.zip on the failure list.
  2. Place the deletion in the decision log.
  3. Refuse a sanitization certificate the file does not contain.

9.1 The zip is still the third failure line.

old-backup.zip is sensitive and set to anyone-with-link, so the comprehension prints it. The prose then says the zip came from a previous system, was no longer needed, and was deleted after Mark and the retention rules were checked. That sequence is a log entry. The triple is unchanged, so a reader of the script still sees the third line.

Deletion here means the clinic stopped keeping that copy. The page does not name a sanitization method, a tool, a recycler, or a disposal date. A certificate of wiping cannot be copied out of a sentence that never stated one. Fewer copies was the stated reason for removing an unneeded archive, not a measured proof that every other copy was found.

The activity-log check before the deletion is also prose. It is not a column beside the triple. Invoices were restricted rather than deleted; that different action must not be collapsed into the zip's story. Both objects remain failure lines in the export.

9.2 Worked example

Lesson table; scroll horizontally to read all columns →

Claim Where it would have to be Decision
The third line names old-backup.zip The filter output Keep
The zip was deleted after a retention check The log Keep as prose
"The script dropped the zip once it was deleted." No edited list Refuse
"A wipe certificate shows the method." No method is written Refuse

Synthetic case. Mark is the owner who was consulted. No disposal firm is named.

Errors and limits

Do not describe a wiping procedure. The evidence stops at the export line and the log.

Apply

Worked answers

EX055. old-backup.zip stays the third failure line. Deletion after the retention check with Mark stays in the log. No sanitization method, recycler, or disposal date is printed.