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Questions tagged [isp]

Questions about the security of ISPs (Internet Service Providers), ISP managed devices, ISP communications etc.

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1answer
37 views

Is it safe to whitelist my public ip to a server, even I am behind CGNAT?

I have a few VPS and Databases in GCP, I can access them by whitelisting my IP, but just few months ago my ISP rollout their CGNAT and I was affected. As far as I know CGNAT, allow multiple subscriber ...
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1answer
92 views

Can my isp see the (non-https) websites I visit if I use browser VPN extension?

Can my isp see the (non-https) websites I visit if I use browser VPN extension? Chrome notices non-secure connection for them but I use browser based VPN extension and different country (VPN server).
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1answer
113 views

What can my ISP see regarding my VPN tunnel? [duplicate]

I use the free version of proton VPN because it has such a nice interface. From my understanding, when I connect to one of their VPNs located in the US, my information passes through an encrypted ...
3
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1answer
140 views

Is it possible to mac-spoof Xfinity Wireless?

Background Comcast/Xfinity operates various wireless hotspots across the US, accessed via the SSID xfinitywifi through the many wireless access points shown on https://hotspots.wifi.xfinity.com/ ...
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1answer
140 views

What Data Does an ISP Store? [closed]

Sorry for being so general, but I know my ISP logs connections to others and all. I'm just questioning whether they keep any physical data that was over a HTTPS connection. Learned about how ISPs also ...
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2answers
133 views

How I can hide from my ISP that I have created a hotspot?

I am using manjaro Linux, And create a Hotspot with create_ap script I spoof my mobile and laptop to have the same MAC address What can I do so they can not detect I am using my mobile connected to ...
4
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2answers
188 views

how is my ISP able to inject into this webpage?

Lately I've noticed that pages I go to on http sometimes have a large banner at the top from my ISP. What's weird is when I refresh the pages I get the https version of the site and the banner is not ...
1
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1answer
93 views

Is using a VPN like changing your ISP?

I am asking this question from a security perspective (not privacy) I have read that using a vpn can prevent hackers including your isp (who could be working for the government) from doing mitm ...
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3answers
191 views

ISP provider does not giving permission to change my router password

We have got a new connection from a local ISP provider, the provider supplied a router and other few devices, then he has configured the device with a password, but he does not allow us to reset or ...
1
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2answers
243 views

How an ISP can detect if someone having a WhatsApp call or video call? without detecting or blocking the rest of the app [duplicate]

I am asking the questions because of the latest news: https://www.bbc.com/news/world-middle-east-50095448 I wonder how the ISP can detect the use of call and video calls, without detecting or ...
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1answer
118 views

How does DoH protect against ISP tracking?

Seems like a modern ISP would already be equipped with some basic level of packet inspection to identify outgoing TCP connections even if just for doing traffic shaping or carrier-grade NAT, and ...
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0answers
104 views

I run a web crawler on my localhost computer, can my ISP detects that? [closed]

I'm using an Internet plan of 100GB bandwidth monthly from my ISP, and I made a simple web crawler for fun and run it on my personal computer 24/7. The crawler is consuming all of the bandwidth, and I ...
30
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10answers
8k views

Received email from ISP saying one of my devices has malware

My dad received a suspicious email from our ISP (mtnl.net.in). The email was from noreply@mtnl.net.in and it had our user ID (I masked it as xxxxxxxx@a) in the email so it must have come from the ISP ...
1
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1answer
81 views

How can I know if the cyber-protection offered by my ISP is worth the extra cost? [closed]

My ISP offers a "cyber protection" service at an extra cost. They say it "identifies and blocks privacy attacks, credit-card scams, identity thefts and hacker attacks against computers connected to ...
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2answers
114 views

Can your ISP tell what google account searched what? And can they share this information? [duplicate]

If you search something, can your isp share the google account it was searched from?
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2answers
190 views

Google searches seen by ISP

When you enter something in the search bar right before it connects to google, can an ISP see that?
1
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1answer
97 views

Other computers/customers of my Internet Service Provider appears under my “Network” section in Windows Explorer

I could see many computers under "Network" section on the left sidebar of Windows Explorer, but I am the only one who uses computer on my home. So I suppose all those computers are also using the ...
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0answers
8 views

SSL/TLS connections over VPN [duplicate]

When communicating with a server using SSL/TLS via a VPN, can the VPN or ISP intercept the communication and understand the data being sent?
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2answers
1k views

Can an isp see what you search on google images

I was under the impression all images were https. Not really a computer person. So I don’t really understand how this works. I was also under the impression that isps can see all images and searches ...
2
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1answer
169 views

How do ISPs send their own pages when a user is trying to access a blocked site?

I know that some ISPs send block pages(like "This site has been blocked because ... ") over HTTP by sending a fake 301/302 redirect. I also know that instead of sending a block page, some ISPs simple ...
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2answers
185 views

How secure are the default, randomized passwords that ISP routers come with?

Did a little searching an could not find an answer to this. A lot of ISPs these days are providing combination router/modem units, and they come with a pre-configured password that is a random string ...
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0answers
90 views

How to prevent router identification [closed]

How to prevent my router (D-Link AC1200 LTE Router DW-953) which is using a 4G sim card for data from being identified by an ISP? The router has the current Firmware Version V01.02.3.045, with no VPN ...
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2answers
109 views

Is it expensive for ISPs to store browsing, text and call logs?

I couldn't really find this answer anywhere. If an ISP was to record every browsing, call and text we make/send, would it be expensive for them log and store this? Assume an ISP has 4 million devices ...
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3answers
366 views

Will pentesting my own LAN violate ISP rules? [closed]

I want to learn and practice penetration testing on my own network, and I want to be sure I'm making it legal. Is there a system that reports to my ISP that I'm making suspicious activities, even if ...
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2answers
72 views

Securing Home Network using 3rd Party Firmware / Access Points

I've been having some trouble on my home network and thought that having a router as an AP would help fix these attacks. At first it did, but now it seems the attackers have gotten through. For all I ...
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0answers
46 views

What ISP know about my local network when I use their ONU?

I have FTTP (Fibre to the Premises) and a GPON ONU given to me by my ISP. I know they can see hostnames and MAC of devices connected in ONU. If I connect my personal router to this ONU and then ...
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1answer
178 views

How Hathaway ISP shows renewal reminder in non secure website?

I am using prepaid broadband plan of Hathaway (in India). Few more days are left for the plan to get expired and I observed the below screenshot. This popup comes only when I visit any non-secure ...
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2answers
149 views

Using a decoy traffic while using the internet

Since the ISP knows what sites I visit and they can assume or predict that I'm using Tor if they are monitoring my traffic, how can I distract them by making them see that I visit some particular site ...
1
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2answers
306 views

Is it impossible for an ISP to block access to a site that has a dynamic IP?

I was reading on how ISPs in many countries block access to many sites. This got me wondering -- How do ISPs block sites in the first place? I found answers here, and reading through, it became ...
52
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8answers
29k views

If I delete my router's history can my ISP still provide it to my parents?

If I delete my router's history, is it still visible and can my ISP still provide it to my parents? Or is it deleted from existence?
2
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4answers
535 views

Can an ISP detect or log specific devices connected to ISP-provided home routers?

Let's say I’m using a Dell Inspiron Laptop. Does my ISP have a log of this or can they detect what devices are connected to my router?
1
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1answer
761 views

How long do ISPs retain data? [closed]

I recently came across an article informing people about how long major ISP’s store user data such as IP assignments and other user data. On average, companies supposedly stored this data for 6 months ...
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0answers
47 views

Real time chat - is it possible to see messages from it again

I have a theoretical question. If you went on a website which provides real time chat service, and only login information it requires is a username of your choice, and the website adress was https, ...
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1answer
112 views

What is the power of my ISP about my modem? [closed]

I have speed problem for my internet connection. When I called my ISP they said that the source of the problem is your VDSL modem.TTNET is my ISP and modem is provided by ISP. I wonder How they can ...
7
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1answer
319 views

Do major ISPs still ignore IP spoofing?

I was reading this question: Why don't ISPs filter on source address to prevent spoofing? and based on those answers, ISPs ignore it because of the overhead of checking for spoofing. But that ...
0
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3answers
662 views

Does a self-hosted VPN (openvpn) at home encrypt traffic for my ISP? [duplicate]

Title says it all. If I host my own VPN at home (using openvpn), and connect my devices to it, will my ISP be able to see the contents of my traffic?
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2answers
1k views

How does DNS over TLS prevent your ISP from seeing the websites you visit?

For example, I'm using DNS over TLS in Android Pie. This happens: I visit a website (google.com). I send a DNS query to the DNS server, and the response is the IP address of google.com. The ISP knows ...
1
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1answer
201 views

Is a fake address/info to an ISP/service enough to be untraceable in theory?

It got me thinking recently. Wouldn't a fake/incorrect address be enough to deter investigating/finding a criminal via cyberspace? The reason we know it's so easy to find someone is because they give ...
0
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1answer
152 views

How to prevent my ISP or any third party from knowing my browsing history and such without VPN or DNS servers? [closed]

Is it possible to encrypt my data before sending it through my ISP so all they see is an encrypted stream of what I am doing? How will that be possible? This should be done without using VPN, Tor, i2p,...
0
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1answer
99 views

How can a router or my ISP protect against phishing? [duplicate]

I see a few services advertising the ability to protect against phishing and ransomware attacks. ISPs sell services which supposedly protect you and some routers like Check Point 700/900 series. Is ...
-1
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1answer
108 views

Online traffic monitoring by ISP for safety purposes [closed]

I have a question regarding approach to online security and protection against viruses, malware and phishing by one of the biggest European ISP. Below you will find my understanding of the topic. Is ...
2
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1answer
147 views

OpenVPN configuration and ISP's DNS

I have configured OpenVPN server for using Clouflare DNS - 1.1.1.1. I use OpenVPN connection in the next way: sudo openvpn --config Config.ovpn on my local machine in WiFi network. My ISP provider ...
1
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2answers
460 views

Is this a viable defense against correlation attacks?

So, I guess most of you know that the true identity can be revealed if somebody controls the entry and the exit node of your Tor-connection. Let´s say I´m connecting first to an encrypted VPN Server ...
1
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2answers
139 views

Can an ISP limit what security software (firewall) that will work?

My ISP (JCOM) says that McAfee is the only security software that will work with them. Is that true? The system is running Windows 7 Home Premium Japanese Version. The McAfee system is provided by ...
3
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3answers
513 views

Is a DoS attack possible on a single home connection when the ISP uses NAT?

Today almost all ISPs use a NAT system to assign more people the same IP (at least where I am), probably because the IPv4 addresses are ending and they want to save money. Is it possible to make a DoS ...
-1
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1answer
487 views

Can VPN prevent ISP from tracking? [duplicate]

Is VPN able to hide the traffic from the tracking and viewed by the ISP or even government units? Is VPN able to bypass the ISP internet hotspot quota limit? How did ISP track/identify whether user is ...
4
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2answers
9k views

Is it dangerous to disable the IPv6 firewall built into many home routers?

The router that my ISP has delivered contains an IPv6 firewall. The only configuration option is whether it is on or off. Apparently, this firewall simply denies all incoming connections. I ...
-2
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1answer
59 views

How to use Cox ISP and maintain secure account information? [closed]

Cox ISP has been changing my account information like my address, phone number and name to the wrong addresses, names and phone numbers. I ask them to make the corrections and they don't. Instead ...
0
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3answers
211 views

Do VPNs connect to my ISP?

When I ask the VPN server to do the queries for me, does the VPN use its own ISP to run the queries over the internet? Or did the VPN server use my ISP connection to search over the internet and by ...
0
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1answer
546 views

Can someone eavesdrop on my home network? [closed]

My network setup is: First router+modem connected to ADSL cable Second router is connected via LAN to WAN to the first router My computer is connected to the second router via ethernet cable. there ...