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miércoles, 29 de julio de 2015
Windows 10 : Privacy issues that Lenovo write a few days ago
Lenovo on STARTING TO USE WINDOWS 10. The manual gives a elaborative tutorial of basic use of Windows 10 and its features.
By downloading Windows 10 you are allowing Microsoft to spy on you
Window 10 has finally arrived on
many users PC/Laptops and they must be busy exploring the Microsoft’s latest
offering. There are a lot of things users of Windows 10 should be aware of, and
one of them is privacy while other is understanding the features of Windows 10.
We had already warned you that
Windows 10 Technical Preview, when it was launched, was a keeping track of
everything the beta tester did within the operating system. However as it was a
TP, Microsoft had a right to know about the behaviour of its operating system
through user feedback before the final product launch.
But now, Microsoft has released the
final version of Windows 10 and it has come out with a brand new Privacy Policy
and Service Agreement which users should carefully read to know about the implications
of privacy if they use Windows 10.
The Privacy Policy will go into
effect from 1st August and here are a few controversial points which you should
know about.
First of all by downloading and
installing Windows 10, you give Microsoft very broad power to collect things
you do, say and create while using its software. The data collection is quite
ambiguous but one thing is certain, Windows 10 will be reporting back many
things that you do, to the Microsoft servers back at Redmond.
Data syncing by default
Microsoft will sync settings and
data by default with its servers. This includes your browser history, favorites
and the websites you currently have open as well as saved app, website and
mobile hotspot passwords and Wi-Fi network names and passwords. This is pretty
much like how Google Chrome sync works, however, if you are not comfortable
with sharing your usage habits you can deactivate it from settings.
Cortana
As with the Windows 10 Technical
Preview, the Microsoft’s personal virtual assistant, Cortana is a online
snooping antennae for Microsoft. Which means it shares everything you do when
you use it. However you have allow it to do just that because ironically it
cant function in all its glory without collecting such data. Microsoft privacy statement
is quite indicative of this fact :
To enable Cortana to provide personalized experiences and relevant
suggestions, Microsoft collects and uses various types of data, such as your
device location, data from your calendar, the apps you use, data from your
emails and text messages, who you call, your contacts and how often you
interact with them on your device.
Cortana also learns about you by collecting data about how you use your
device and other Microsoft services, such as your music, alarm settings,
whether the lock screen is on, what you view and purchase, your browse and Bing
search history, and more.”
Advertising ID :
Windows 10 generates a unique
advertising ID for each user on each device. That can be used by developers and
ad networks to profile you and serve commercial content. Like data sync, you
can turn this off in the Setting menu > Privacy> general > Change
privacy option
Disabling all the buttons in the
Change privacy options will opt you out from the Microsoft advertising network.
Encryption key are backed up to
OneDrive
Another one of those necessary
requisites but the one that you should be aware of. When device encryption is
turned on, Windows 10 automatically encrypts the drive its installed on and
generates a BitLocker recovery key. That’s backed up to your OneDrive account.
You empower Microsoft to disclose
your data once you download Windows 10
Read this part carefully. Upon
agreeing to the service agreement and privacy policy you basically allow
Microsoft to disclose your data to anyone it wishes to. Though realistically
that may never happen but this is one controversial aspect of the privacy
policy.
We will access, disclose and preserve personal data, including your
content (such as the content of your emails, other private communications or
files in private folders), when we have a good faith belief that doing so is
necessary to protect our customers or enforce the terms governing the use of
the services.
sábado, 23 de mayo de 2015
Learn to Encrypt Your Emails against an invasion of privacy by NSA
Now that we have enough details about how the NSA's Surveillance
program, running for a long time against almost each country of this
planet.
Hundreds of top-secret NSA documents provided by whistleblower Edward
Snowden already exposed that Spying projects like PRISM and MUSCULAR are
tapping directly into Google and Yahoo internal networks to access our Emails.
NSA's tactics are even capable to defeat the SSL encryption,
so unsecured email can easily be monitored and even altered as it travels
through the Internet.
One major point on which all of us are worrying is about the privacy of
communication among each other and If you're looking for a little personal
privacy in your communications you will need to encrypt your messages.
To avoid privacy breaches; rather I should say to make it more difficult
for the NSA or British GCHQ surveillance program to read our communication, we
should use PGP encryption (Pretty Good Privacy).
Why we should encrypt our Emails? Each public mail service provider sends information
from sender to recipient like a postcard which has a recipient’s address and
the content to be conveyed; and is open to the medium used for sending the
card. Encryption is an envelope of the content of the document to be
sent and leave the recipient’s address open so that it can reach to the
destination. So by encrypting your mail, even if any mail service provider is
keeping a record of all mails, you need not to worry that your document is
being read by third person neither by NSA people.
Encrypting your email may sound daunting, but it's actually quite
simple. We are going to use something called GNU Privacy Guard (GnuPG) or
Gpg4win (Windows).
Installation
Step 2: Go ahead and after successful installation, close the window.
Generating your PGP pair
key:
Step 3: Now open Kleopatra tool (A GUI GPG Key Manager) to create a new
asymmetric key pair (public & private). Click on File -> New Certificate.
Step 4: In the key generation wizard, click on "Create a personal
OpenPGP key pair" and in the next window enter your basic details:
Step 5: In the next window, once review your details and click "Create
Key". It will prompt you for entering a passphrase. Set a strong
password and confirm it once again in the next window.
Step 6: Within a few seconds (depending on your system speed), Your Key pair
will be generated (as shown).
Step 7: You should "Make a backup of your file pair" somewhere
safe. You can also export the public key to the public directory by clicking on
the Upload Certificate to Directory Service.
Step 8: Once done, the key manager main interface will show your certificate as
shown:
Step 9: Select your newly generated certificate -> Right click -> click
on Export Certificates to save your Public keys on the desktop.
You will have to exchange
your public keys with whom you want to make secure communication via
mails. Many people post their public keys to their personal websites. You
can send it as attachments to everyone you email, just so they have
them.
Once your friends will have
your Public keys, they can import it Kleoptra software via 'Import
Certification' option from the menu.
Composing an encrypted
email:
Step 1: Open Outlook -> Compose a new mail and write the recipient’s address,
Subject and your message.
Note: You
should already have your email ID configured over Outlook software on windows
machine and if your Outlook doesn't have OpenPGP, then you can install 'Outlook Privacy Plugin' to enable it.
Step 2: Under GpgOL menu (as shown), click on 'Encrypt'. The software
will automatically import the public keys of the recipient from the Key Manager
(only if exists or imported before).
Step 3: If you also want to attach some files to this encrypted email, then
under GpgOL menu, click Encrypted File and select the file to be
attached and SEND mail.
When you or the recipient
will receive the encrypted mail, one should first decrypt it using private
keys.
Step 4: Under GpgOL menu, click on 'Decrypt' to convert the
email into readable form. To proceed, It will ask for the secret passphrase
entered at the time of creation of key pair.
That's it! Other than
Outlook you can also use various desktop email clients (Thunderbird or Postbox)
or web mail, that also support PGP encryption. You can import your key pair to
other software also in order to manage the same account.
viernes, 15 de mayo de 2015
Here’s How an Attacker Can Bypass Your Two-Factor Authentication
Secure
Yourself by Using Two-Step Verification on These 16 Web Services
Two-factor
authentication, also known as 2-step verification, provides additional security
for your online accounts. Even if someone discovers your password,... [Read
Article]
The
two-step authentication systems on many websites work by sending a message to
your phone via SMS when someone tries to log in. Even if you use a dedicated
app on your phone to generate codes, there’s a good chance your service of
choice offers to let people log in by sending an SMS code to your phone. Or,
the service may allow you to remove the two-factor authentication protection
from your account after confirming you have access to a phone number you
configured as a recovery phone number.
This all
sounds fine. You have your cell phone, and it has a phone number. It has a
physical SIM card inside it that ties it to that phone number with your cell
phone provider. It all seems very physical. But, sadly, your phone number isn’t
as secure as you think.
If you’ve
ever needed to move an existing phone number to a new SIM card after losing
your phone or just getting a new one, you’ll know what you can often do it
entirely over the phone — or perhaps even online. All an attacker has to do is
call your cell phone company’s customer service department and pretend to be
you. They’ll need to know what your phone number is and know some personal
details about you. These are the kinds of details — for example, credit card
number, last four digits of an SSN, and others — that regularly leak in big
databases and are used for identity theft. The attacker can try to get your
phone number moved to their phone.
There are
even easier ways. Or, For example, they can get call forwarding set up on the
phone company’s end so that incoming voice calls are forwarded to their phone
and don’t reach yours.
Heck, an
attacker might not need access to your full phone number. They could gain
access to your voice mail, try to log in to websites at 3 a.m., and then grab
the verification codes from your voice mailbox. How secure is your phone
company’s voice mail system, exactly? How secure is your voice mail PIN — have
you even set one? Not everyone has! And, if you have, how much effort would it
take for an attacker to get your voice mail PIN reset by calling your phone
company?
Two-factor
authentication secures your accounts with an additional authentication method,
often a time-limited code generated by a mobile app. But... [Read Article]
Your phone
number becomes the weak link, allowing your attacker to remove two-step
verification from your account — or receive two-step verification codes — via
SMS or voice calls. By the time you realize something is wrong, they can have
access to those accounts.
This is a
problem for practically every service. Online services don’t want people to
lose access to their accounts, so they generally allow you to bypass and remove
that two-factor authentication with your phone number. This helps if you’ve had
to reset your phone or get a new one and you’ve lost your two-factor
authentication codes — but you still have your phone number.
Theoretically,
there’s supposed to be a lot of protection here. In reality, you’re dealing
with the customer service people at cellular service providers. These systems
are often set up for efficiency, and a customer service employee may overlook
some of the safeguards faced with a customer who seems angry, impatient, and
has what seems like enough information. Your phone company and its customer
service department are a weak link in your security.
Protecting
your phone number is hard. Realistically, cellular phone companies should
provide more safeguards to make this less risky. In reality, you probably want
to do something on your own instead of waiting for big corporations to fix
their customer service procedures. Some services may allow you to disable
recovery or reset via phone numbers and warn against it profusely — but, if
it’s a mission-critical system, you may want to choose more secure reset
procedures like reset codes you can lock in a bank vault in case you ever need
them.
It’s not
just about your phone number, either. Many services allow you to remove that
two-factor authentication in other ways if you claim you’ve lost the code and
need to log in. As long as you know enough personal details about the account,
you may be able to get in.
Try it
yourself — go to the service you’ve secured with two-factor authentication and
pretend you’ve lost the code. See what it takes to get in. You may have to
provide personal details or answer insecure “security questions” in the worst
case scenario. It depends on how the service is configured. You may be able to
reset it by emailing a link to another email account, in which case that email
account may become a weak link. In an ideal situation, you may just need access
to a phone number or recovery codes — and, as we’ve seen, the phone number part
is a weak link.
Here’s
something else scary: It’s not just about bypassing two-step verification. An
attacker could try similar tricks to bypass your password entirely. This can
work because online services want to ensure people can regain access to their
accounts, even if they lose their passwords.
For
example, take a look at the Google Account Recovery system. This is a
last-ditch option for recovering your account. If you claim to not know any
passwords, you’ll eventually be asked for information about your account like
when you created it and who you frequently email. An attacker who knows enough
about you could theoretically use password-reset procedures like these to get
access to your accounts.
We’ve never
heard of Google’s Account Recovery process being abused, but Google isn’t the
only company with tools like this. They can’t all be entirely foolproof,
especially if an attacker knows enough about you.
Whatever
the problems, an account with two-step verification set up will always be more
secure than the same account without two-step verification. But two-factor
authentication is no silver bullet, as we’ve seen with attacks that abuse the
biggest weak link: your phone company.
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