this post was submitted on 06 Feb 2025
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Privacy

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Everything about privacy (the confidentiality pillar of security) -- but not restricted to infosec. Offline privacy is also relevant here.

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Just a reminder, especially in this wild time we live in. DO NOT INSTALL WORK MDM ON YOUR PERSONAL DEVICE.
If your work requires Microsoft Intune or similar MDM, to get email/teams/slack. don't accept it. It opens your device up for them to access private data and disable/delete your phone (even if they say they wont, they can)

https://blog.cdemi.io/never-accept-an-mdm-policy-on-your-personal-phone/

#privacy #android #iphone #work #email #outlook #microsoft

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[–] [email protected] 1 points 4 days ago

@[email protected] this article is fear-mongering bullshit.

[–] [email protected] 1 points 5 days ago

@[email protected] @[email protected] I know back awhile ago, Outlook on android had the ability to wipe a device without MDM. Coworker accidentally wiped an ex employee’s personal device trying to deauthorize it.

[–] [email protected] 2 points 5 days ago

@[email protected] I'm curious, but how would isolating this within an island suffice if one absolutely had to do it?

[–] [email protected] 2 points 5 days ago

@[email protected] one thing that surprised me about Intune MDM on a personal device is that your organization can reset/remove your passcode at will. I still can't find anything in the docs nor enrollment process that would clearly explain this capability to the user.

[–] [email protected] 1 points 5 days ago

@[email protected] my employer recently refreshed phones and the new ones come with MDM installed by default. I carefully read the privacy policy and they explicitly say that in a justified case they're allowed to read your private data and can lock/delete the phone if necessary. Nope, my private data wont be on that device.

[–] [email protected] 1 points 5 days ago

@[email protected] Good advice. Never had, on any personal device.

When I was at S***, they wanted to do that so I can get work email and basically be available on-call after-hours.

I told them from manager up to SVP "give me a separate phone, or I'm not doing it".

They never gave me a separate phone, and I wasn't held to be available off-hours.

Really helped when I separated from company as nothing I had got arbitrarily remotely wiped.

Also saved things during the Crowdstrike event.

[–] [email protected] 2 points 6 days ago

@[email protected] I have to install this on people's devices as part of my job. I'm shocked at the number of people who would rather put this on their personal phone as opposed to carrying a second company-supplied phone. And yes, the option is presented.

[–] [email protected] 2 points 6 days ago (1 children)

@[email protected] In my previous job, I worked with Intune MDM... Yeah we had several instances of someone on my team accidentally disabling or wiping employee-owned phones. I suspect this is more common than many would like to admit. After that experience, I'll never allow an employer to have control over my personal device, even if it means I have to find a new job.

[–] [email protected] 1 points 6 days ago

@[email protected] yeah. People are not infallible. Look at the stories of jealous cops using license plate scanner cameras to track an ex.

Or just a micromanaging boss wanting to know your location.

Sometimes it’s an intern hitting the wrong button.

[–] [email protected] 2 points 6 days ago

@[email protected] This is highly dependent on the way MDM is implemented. If your company is implementing MDM to fully onboard your personal device, then yes. Everything you said is correct. If however they are using a combination of (for Microsoft environments) App Restriction Policies and Conditional Access policy then the company has no way to issue a wipe on your phone. App restriction policies places managed applications in a separate encrypted partition. The company can see company data, but nothing from your personal partition at all. Nor can they control your device, monitor any of the sensors, or track your location or contacts.

The vast majority of orgs just do the full blown MDM enrollments though because it's far less work to implement and less complicated to manage.

[–] [email protected] 1 points 5 days ago

@[email protected] there are settibgs within intune to only put in place control over the corporate apps. Essentially containerizing that data and wiping only that data without the ability to remote wipe the rest of the phone.

[–] [email protected] 1 points 5 days ago

@[email protected] @[email protected] If your company requires access to your phone, then they owe you a phone.

[–] [email protected] 1 points 5 days ago

@[email protected] Thais Blog Post is 7 years old and a lot has changes singe then. The mentioned android administrator profile is deprecated and replaced bz a much user friendlier version. If done right ( aka competent IT, segregation profiles, dual sim) there is nothing speaking against using a personal phone for company stuff. But: as an end user it’s very hard to know what the tea to do in the first place. So I’d say be conscious and if IT can show and proof what they are doing, you’re fine on android.

[–] [email protected] 2 points 6 days ago

@[email protected] @[email protected] The problem here is that BYOD is not done right by Microsoft (maybe also other MDM vendors). With iOS itself you can enroll devices company owned and private owned. On private owned devices the private data is separated from the company data. On disk an additional encrypted partition is created for the company data, so that the data are separated. Also apps like Notes keeps the data separated. (I don’t know Android, but I think its similar.) See also https://www.apple.com/business/docs/resources/Managing_Devices_and_Corporate_Data.pdf

[–] [email protected] 1 points 5 days ago
[–] [email protected] 1 points 6 days ago

@[email protected] @[email protected] I actually went through this with the IT at our current company when I enrolled. MDM is quite appropriate for us, we manage people's money. I also have some experience in iOS device management.

As far as I know, these concerns are wildly exaggerated for iOS. It wasn't true in 2018 when this was written (read further down to the comments) and it's far less true now.

IME users are about 1000x more likely to be compromised by some free-to-play game or social network

[–] [email protected] 1 points 6 days ago

@[email protected]
This sounds like the sort of thing that certain staff have the ability to fight and other staff might lack the ability to fight.
#union #unions

[–] [email protected] 1 points 6 days ago

@[email protected] if work wants me to have a cellphone then they will provide it. (And they do). This is not negotiable. I will never mix my personal life with my work life on a phone.

[–] [email protected] 1 points 6 days ago

@[email protected] I have to wonder if Samsung might be doing something like this, but with customer phones. Before I dropped Samsung in favour of another brand, I'd noticed what teemed like new apps that I'd never installed, nor wanted, being updated.

[–] [email protected] 6 points 1 week ago (1 children)

@[email protected] Company I worked for years ago decided to require this for any device that wanted access to Outlook. I put my foot down and said nope, my device: either gimme a phone or I just won’t have access to my work email nights and weekends. They stood firm; and it was nice to delete Outlook (I wasn’t there much longer, the writing was on the wall for what they were becoming and I left).

[–] [email protected] 5 points 1 week ago

@[email protected] did the same at a previous job. i wont install teams on my phone

[–] [email protected] 3 points 1 week ago

@[email protected] exactly the reason I don't have outlook on my phone. Some of my teammates accepted it without even knowing, lol. I just use outlook PWA. No notifications, but we primarily use slack so 🤷

[–] [email protected] 2 points 1 week ago

@[email protected] @@[email protected] I like that some platforms have a good segmentation barrier in the form of containers like Samsung's Knox, but yea. I work in IT, I've been asked to issue a wipe, I know what happens :/