Blog
Apple Maps - Visited Location?
Ian Whiffin - 27th February 2024
Was an Apple Maps route location actually visited - and the journey it takes to get the answer.

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BrowserState.db last_visited_time?
Ian Whiffin - 24th November 2023
A blog to answer a fairly common question about Safari's BrowserState.db and the meaning of last_visited_time.

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KnowledgeC Complete(ish)
Ian Whiffin - 21th August 2023
A close look at knowledgeC and attempt to answer some of those lingering questions. Despite knowledgeC's seeming retirement it is still good to know.

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Location Accuracy
Ian Whiffin - 20th June 2023
A close look at Locations Accuracy. Yes. Again.

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iOS16 iMessages
Ian Whiffin - 8th June 2022
A look at iOS16's new Edit/Unsend iMessage Feature

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ArtExtraction
Ian Whiffin - 24th November 2021
Using ArtEx for Live Connection Research

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The case of the Phantom Device Usage
Ian Whiffin - 12th November 2021
Unmasking the phantom device user...

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Message Reactions
Ian Whiffin - 2nd November 2021
An interesting little tidbit about Message Reactions and how it may come in handy.??

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iOS Media Adjustments
Ian Whiffin - 26th October 2021
iOS now allows users to "Adjust" the time and location of recorded media. What affect will that have on forensic examinations?

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iOS GeoFences
Ian Whiffin - 23rd October 2021
A look at Consolidated.db (GeoFences) on iOS.

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Health Data Types
Ian Whiffin - 1st September 2021
A look at the various Data Types in use within the iOS Health Application.

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Harvested Locations
Ian Whiffin - 26th March 2021
EncryptedB.db appears to be a gold mine of location data. But is it really?

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Missing SQLite Records Analysis
Shafik G. Punja & Ian Whiffin - 1st February 2021

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Upgrade from NULL
Heather Mahalik & Ian Whiffin - 3rd December 2020
A look at the different clues for determining when a device was wiped

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Locations, Locations, Locations
Ian Whiffin - 18th July 2020
A detailed look at Location data. How it is obtained and how accurate it is.

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Favicons
Ian Whiffin - 7th June 2020
A look at how Favicons may be useful to your investigation.

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CheckRa1n
Ian Whiffin & Shafik G. Punja - 16th April 2020
A look at extracting iOS devices into a TAR archive using ios_bfu_triage.

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Primary Key / Date Stamp Fallacy
Ian Whiffin - 4th April 2020
A brief look at missing records within communication databases.

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iOS Mail
Ian Whiffin - 29th March 2020
A dive into the standard email client on iOS devices.

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So Long Lockdown!
Ian Whiffin - 8th February 2020
The end of Lockdown.log; A quick post to say goodbye.

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Apple Pay Transactions
Ian Whiffin - 8th February 2020
Extracting Apple Pay Transactions from an iPhone (and Watch)

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A Hundred Million TimeStamps
Ian Whiffin - 27th Jan 2020
A look at a large number of different TimeStamp formats in use.
Gives examples of what each timestamp looks like, describes how to convert it to a human readable format and provides a calculator to work them out.

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7bit PDU (GSM-7)
Ian Whiffin - 25th November 2019
A look at 7bit PDU - an important but often overlooked encoding method for SMS Messages. This came about a couple of years ago when a phone I had to examine had messages live on screen that my forensics tool couldn't find. After researching 7bit PDU I was able to manually recover over 500 SMS important to the case.

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SnapChat PList
Ian Whiffin - 23rd October 2019
A deconstruction of SnapChat's chatConversationStore.plist file (Hint:It's not a PList).

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PList Decoding
Ian Whiffin - 23rd October 2019
A look at how Binary PLists store data and how to manually decode them.

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KnowledgeC (and Friends)
Ian Whiffin - 23rd October 2019
KnowledgeC is a common database in recent iOS Versions that holds a wealth of information. This is far from the first time it's been written about, but it ties in perfectly with some software I've been working on and seemed like a nice article for my first blog.

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Welcome to DoubleBlak.com!
Ian Whiffin - 23rd October 2019
A little bit about me and my new website. Why I did it and what you can expect to find here.

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