SIM Only Mobile Plans Discussion

[Lala81]

haha if people swap your e-sim to steal your account/number, then u see whether u complain whether all this leh cheh lah 

I would actually applaud EIGHT for being by far the most secure provider for eSIM users.
Actually requiring physical verification of having the actual phone with the eSIM

Go read reddit on how people kana eSIM transfer fraud.

 

No offence. someone overseas claiming to need to change the eSIM to another phone, is precisely the most suspicious type of eSIM transfer...

 

Quote

1. eSIM transfer fraud (account takeover)

This is the most common real‑world incident.

Attack steps:

Attacker gains access to victim’s carrier account (via phishing, password reset, leaked credentials, etc.)

They request an eSIM transfer or “move my number.”

Carrier issues a new activation QR code.

Attacker installs the profile on their device.

Victim’s phone loses signal.

This is essentially SIM‑swapping, not cloning.

⭐ 2. Carrier insider attacks

A malicious support agent can:

Generate an eSIM activation file

Transfer number to a new device
This also isn’t cloning—it's unauthorized provisioning.

⭐ 3. Device‑based vulnerability exploitation

In rare cases, malware can:

Intercept SMS 2FA

Trigger remote SIM provisioning requests (if carrier APIs are insecure)

Still no key extraction, no real cloning.

⭐ 4. Physical access attacks

If the attacker has your unlocked phone, they can:

Export an eSIM profile only if the carrier allows “export”

Generate a transfer request
Again: provisioning, not cloning.

 

Edited November 25, 2025 by Lala81

[Kangadrool]

very soon, no more physical SIM. Next year, another IPhone model will go completely e-sim. Then, the rest will also follow...

Telcos taking this opportunity to make $$$ from people who frequently switch device.  

[Lala81]

On 11/25/2025 at 10:25 AM, Kangadrool said:

very soon, no more physical SIM. Next year, another IPhone model will go completely e-sim. Then, the rest will also follow...

Telcos taking this opportunity to make $$$ from people who frequently switch device.  

if there's two options, doesn't mean the other one will go extinct.

iphones sell a lot but they have basically stagnant market share for many years due to their focus on higher end products. The days where they change the whole industry is sorta gone.

Whatever samsung and the other brands do, they cater from cheap to high end, cannot luan luan lai one...

 

Edited November 25, 2025 by Lala81

[Icu]

I always prefer physical SIM for my main line to differentiate from eSIMs (which I usually purchase for overseas usage). Aforementioned, strictly preference. Anyway, here's a screengrab on eight service centers.

Edited November 25, 2025 by Icu

[Beanoyip]

On 11/25/2025 at 1:24 PM, Lala81 said:

haha if people swap your e-sim to steal your account/number, then u see whether u complain whether all this leh cheh lah 

I would actually applaud EIGHT for being by far the most secure provider for eSIM users.
Actually requiring physical verification of having the actual phone with the eSIM

Go read reddit on how people kana eSIM transfer fraud.

 

No offence. someone overseas claiming to need to change the eSIM to another phone, is precisely the most suspicious type of eSIM transfer...

 

 

This is no different from banking/singpass apps.. when you change phone you need to re-register all your digital tokens etc.

I think banks and singpass are more important than your SIM, and all these can be done via Singpass verification and/or 2FA.

Edited November 25, 2025 by Beanoyip

[Beanoyip]

Having said that, my wife also changed her phone last week and managed to get Eight to generate a new eSIM.. so their process is not standardised. 

[Lala81]

On 11/25/2025 at 10:44 AM, Beanoyip said:

This is no different from banking/singpass apps.. when you change phone you need to re-register all your digital tokens etc.

I think banks and singpass are more important than your SIM, and all these can be done via Singpass verification and/or 2FA.

I disagree, your registered number is as important as your bank/singpass.

Once they have your mobile line + your email, virtually everything can be reset nowadays... except singpass Face verification. 

U can't even reset anything without your phone line anymore, unless there's bank staff helping you.

 

 

 

 

[Jman888]

On 11/25/2025 at 10:25 AM, Kangadrool said:

very soon, no more physical SIM. Next year, another IPhone model will go completely e-sim. Then, the rest will also follow...

Telcos taking this opportunity to make $$$ from people who frequently switch device.  

my samsung s25 ultra still have 2 sim slot and i think some china brands like oppo, xiaomi, etc also have, and still can add esim, but only 2 lines available at any point of time. 

hence i have 1 slot for main telco, 1 slot for eight, esim when travel to country that eight doesn't have much roaming data.

[Jman888]

On 11/25/2025 at 11:06 AM, Lala81 said:

I disagree, your registered number is as important as your bank/singpass.

Once they have your mobile line + your email, virtually everything can be reset nowadays... except singpass Face verification. 

U can't even reset anything without your phone line anymore, unless there's bank staff helping you.

 

 

 

 

correct, just help my MIL to change phone, singpass must re-do face verification and you need a registered phone line for verification.

you need a permanent registered phone line for most verification, most online platform need that as long as transaction is involve. 

[Lala81]

On 11/25/2025 at 11:20 AM, Jman888 said:

correct, just help my MIL to change phone, singpass must re-do face verification and you need a registered phone line for verification.

you need a permeant registered phone line for most verification, most online platform need that as long as transaction is involve. 

yes. 
my sister actually bought a dumb phone for my mum (not that she even knows how to use a dumb phone anymore), but i said even though she duno how to use a phone anymore. We still need to keep the samsung phone for her singpass access (we needed it for her maid application). 

 

[Kopites]

On 11/25/2025 at 11:06 AM, Lala81 said:

I disagree, your registered number is as important as your bank/singpass.

Once they have your mobile line + your email, virtually everything can be reset nowadays... except singpass Face verification. 

U can't even reset anything without your phone line anymore, unless there's bank staff helping you.

 

 

 

 

Yes. Fully agreed. Did tried to use wifey phone(phoneline) to log into my banking app. Failed. 😁 need to use back my own line.

The most cumbersome is maybank app. Can't even has the phone developer mode on. Need to switch off the developer mode then re-log in again. 

Never used any esim locally or oversea. Always opted for physical sim. 

Edited November 25, 2025 by Kopites

[Volvobrick]

On 11/25/2025 at 10:25 AM, Kangadrool said:

very soon, no more physical SIM. Next year, another IPhone model will go completely e-sim. Then, the rest will also follow...

Telcos taking this opportunity to make $$$ from people who frequently switch device.  

I only buy phones with SIM and SD card trays.... 

[Lala81]

On 11/25/2025 at 11:45 AM, Kopites said:

Yes. Fully agreed. Did tried to use wifey phone(phoneline) to log into my banking app. Failed. 😁 need to use back my own line.

The most cumbersome is maybank app. Can't even has the phone developer mode on. Need to switch off the developer mode then re-log in again. 

Never used any esim locally or oversea. Always opted for physical sim. 

I almost lost my phone earlier this year. I was like .... I'd rather lose my IC than lose my phone number.
And I'm not even someone who needs the phone constantly for work.

 

[Ray7456]

On 11/25/2025 at 11:38 AM, Lala81 said:

yes. 
my sister actually bought a dumb phone for my mum (not that she even knows how to use a dumb phone anymore), but i said even though she duno how to use a phone anymore. We still need to keep the samsung phone for her singpass access (we needed it for her maid application). 

 

Not really. I don't have a smart phone for my mum. She uses those clam shell 4G phone. Register a physical token for her and tag to my mobile number for all her Singpass transactions

[Ct3833]

On 11/13/2025 at 1:58 PM, Tianmo said:

All my children, and even my wife's lines are under my name. Had wanted to transfer my elder daughter's line when she started working, but M1 said down time 2 days, and we shelf it.

 

Wah lao where got such thing, transfer should be transparent and  almost immediate, who can afford 2 days downtime these days. Or at least they should provide a temporary  number so that you can continue with your voice call, the rest of dsta usage, as long as the line carries data or have wifi accessibility everything should be working as per normal

[Beanoyip]

On 11/25/2025 at 2:06 PM, Lala81 said:

I disagree, your registered number is as important as your bank/singpass.

Once they have your mobile line + your email, virtually everything can be reset nowadays... except singpass Face verification. 

U can't even reset anything without your phone line anymore, unless there's bank staff helping you.

 

 

 

 

Anyway the point is have self serve eSIM swap, Singtel/M1 has the capability to do it.

[Lala81]

On 11/25/2025 at 12:41 PM, Ray7456 said:

Not really. I don't have a smart phone for my mum. She uses those clam shell 4G phone. Register a physical token for her and tag to my mobile number for all her Singpass transactions

my mum has dementia. at least i know she won't throw a phone away. physical token no thanks 

 

good to know though. thanks for the info.

Edited November 25, 2025 by Lala81

[Jamesc]

I support. 

Was going to say the exact same thing. 

USA use esim and so many fraud cases.

Hack a phone and all the bank 6 digit verification goes to them.

The real owner don't even know their phones got hacked and bank accounts emptied.

On 11/25/2025 at 10:24 AM, Lala81 said:

haha if people swap your e-sim to steal your account/number, then u see whether u complain whether all this leh cheh lah 

I would actually applaud EIGHT for being by far the most secure provider for eSIM users.
Actually requiring physical verification of having the actual phone with the eSIM

Go read reddit on how people kana eSIM transfer fraud.

 

No offence. someone overseas claiming to need to change the eSIM to another phone, is precisely the most suspicious type of eSIM transfer...

 

 

 

Edited November 25, 2025 by Jamesc