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Questions tagged [isp]

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

0
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0answers
37 views

How does cellular data differ from an ISP, and what can be tracked? [migrated]

Are IP addresses given to a phone static or not? Also, how can phone companies keep track of a person if they wanted to find them? For example, I don't have an account and use a pre-paid card. I'm ...
0
votes
0answers
39 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 ...
0
votes
2answers
106 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
vote
2answers
114 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 ...
53
votes
8answers
24k 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
votes
3answers
107 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
vote
1answer
67 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 ...
0
votes
0answers
45 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, ...
0
votes
1answer
92 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
votes
1answer
227 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
votes
3answers
184 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?
3
votes
2answers
407 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
vote
1answer
114 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
votes
1answer
140 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
votes
1answer
82 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
votes
1answer
68 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
votes
1answer
77 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
vote
2answers
257 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
vote
2answers
118 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
votes
3answers
223 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
votes
1answer
238 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
votes
2answers
4k 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
votes
1answer
56 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
votes
3answers
159 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
votes
1answer
365 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 ...
3
votes
2answers
245 views

How does my ISP see information about my PC?

Recently I called my ISP and talked to them about a problem I experienced with a PC. They asked me "Are you talking about the PC that is connected in port 2 with X hostname?" It got me wondering how ...
2
votes
2answers
69 views

Can ISPs be helpful in preventing spam?

I have received a number of phishing emails from various domains. I would like to prevent the domain from sending emails so that other people also don't get taken advantage of. I have not been ...
1
vote
1answer
340 views

Management interface on Cisco router

In my company we had firewall as edge device with the internet. Behind this central firewall we have management network. Now we had to put Cisco router in front of central firewall, as part of some ...
0
votes
3answers
119 views

Can an ISP see hostname of VirtualBox

I know ISP see the hostnames of devices connected to them Does ISP see the hostname of VirtualBox Machines ? Also do they see MAC address of Virtual Machines ?
4
votes
1answer
101 views

Can restarting a router result in its software being updated?

Articles in the past few days have mentioned the FBI recommending folks restarting their routers to avoid “Russian” malware from affecting some 500,000 routers. This made me curious; what could ...
1
vote
2answers
98 views

Could an IPS have blocked an attack on a vulnerable router/firewall?

Thinking about the recent news regarding SOHO routers vulnerable to the VPNFilter attack: https://arstechnica.com/information-technology/2018/05/fbi-tells-router-users-to-reboot-now-to-kill-malware-...
3
votes
1answer
99 views

TCP timestamps: available to whom?

I was told that an adversary can figure out system uptime by looking at TCP timestamps. But I'm not sure who exactly can see this information. For example, if I set up a hardware Tor gateway so that ...
2
votes
1answer
146 views

Does your ISP know your router's name?

If you named your router "A" then changed it to "B", would they know / be notified
59
votes
3answers
14k views

Does your ISP know what type of phone/computer you're using?

For instance do they know whether you're using an iPhone or Samsung?
-1
votes
2answers
373 views

What is and how good is an ISP-provided antivirus?

Today I had my Internet provider to install Internet Fiber at my place. I've been asked whether I wanted the antivirus service. I am aware you can (and should) install an antivirus on your computer. ...
4
votes
1answer
390 views

Is my ISP hosting malware or has it suffered a sub-domain takeover, or is my router compromised?

I'm new to this netsec stuff but I wanted to ask an opinion about what is going on here. I've been doing some web development and have been using Codekit for ages, but recently noticed that it's in-...
9
votes
4answers
839 views

My ISP shows my WiFi password on their public site in plain text. Should I be worried?

I recently noticed that when logged into my ISPs (Spectrum) public, external site that can be accessed outside my network, I can see my home network's WPA2 password in plain text. This clearly means ...
-8
votes
1answer
233 views

Monitoring setup compromising online privacy [closed]

Original post has been updated and includes more details, hopefully it will be sufficient. Background I'm hoping that someone here has the adequate knowledge along with suggestions as to what can be ...
-2
votes
1answer
136 views

Is the ISP connected to the cellular network? [closed]

If the ISP is monitoring all internet activity that leaves the home router, will they still be able to monitor the internet activity if you connect to the cellular network from a phone? Is it possible ...
1
vote
3answers
32k views

Can my ISP provide my parents with what sites I visit? [duplicate]

Ok so I'm LGBT, but I'm not out to my parents. They wouldn't be very accepting- and I don't want to be in an environment where they know because trust me it would be a bad situation. However, I want ...
2
votes
1answer
701 views

Is it possible for my ISP to do MITM attack on my VPN? [duplicate]

Yesterday my ISP dropped my connection for several hours. This idea came to me during that time. Is it possible for my ISP to do MITM attack on my VPN when he knows I start it almost instantly as he ...
0
votes
1answer
719 views

Is SSL + DNScrypt enough to hide visited domains from my ISP?

I've been using VPN lately which I configured on Ubuntu machine in Germany, and I do not feel comfortable using it because of high latency. So I found DNScrypt. Since I only want to keep my browsing ...
2
votes
0answers
68 views

Filter out ISPs from Whois results [closed]

I was wondering if there is any efficient way or any service (free or not) that may help me in order to identify companies behind IP addresses. I figured out that in some cases Whois may be really ...
0
votes
1answer
6k views

Can my isp see what I legitimately download? [duplicate]

I can't seem to find the answer for this question. Can my ISP know what I download legitimately - in other words, NOT p2p, NOT torrent based, nor anything else that could be shady. If I go on https://...
14
votes
1answer
2k views

What parties have access to the *full* requested URL of a website accessed via the HTTPS protocol? [duplicate]

What parties have access to the full requested URL of a website accessed via the HTTPS protocol? Here are some possibilities I can think of, and there could be more: local device accessing the ...
8
votes
1answer
1k views

How DNS is leaked? [duplicate]

I am newbie in network security. I cannot understand how can a server detect my DNS servers and how they can be useful to break anonymity. I understand how does the Internet work. How the request is ...
0
votes
1answer
145 views

ISP provides RJ45 instead of RJ11/coaxial/modem, how to separate the network?

The ISP is in the same building, they provide the internet from an RJ45 cable through a hole in the adjacent wall, instead of the conventional coaxial or RJ11 modem. Right now there is an ethernet ...
0
votes
1answer
631 views

VPN, ISP & deep packet inspection

If I use OpenVPN on port 443 (TCP or UDP), is it possible for my ISP with deep packet inspection to find out VPN usage? If so, what is the alternative?
1
vote
2answers
276 views

Can ISP's know the information you share with an https site?

Hate to bring politics onto this site, but politics did inspire this question. I found out today that Donald Trump's new executive order now allows ISP's to sell your data, browser history, and ...
1
vote
1answer
1k views

how free internet proxy works [closed]

I tried to get free internet bypassing my mobile network's ISP using a proxy setting in my mobile. I got the instructions in some trick I read and it actually works. When I browsed the proxy page, it ...