Ransomware, which
encrypts user files until the demanded ransom is paid via cryptocurrency, allows attackers to profit quickly and has been on the rise.
Ransomware often
encrypts user files and threatens to delete the encryption key if a ransom is not paid within some relatively short period of time, but other forms of ransomware involve a criminal actually stealing user data and threatening to publish it online if a ransom is not paid.
Not exact matches
Tactics have ranged from threatening but harmless pop ups purporting to be from law enforcement agencies demanding fines, to the more malicious and damaging tactic of
encrypting the victim's
files in an attempt to force
users to pay to have the
files returned.
The maintainers of the Bitmessage P2P
encrypted communications protocol have released a fix after discovering that hackers were using a zero - day in attempts to steal Bitcoin wallet
files from
users» computers.
Ransomware attacks, which
encrypt and hold a computer
user's
files hostage in exchange for payment, extort millions of dollars from individuals each month, and comprise one of the fastest - growing forms of cyber attack.
One particular Trojan said to be involved was the CryptoWall ransom, that
encrypts a
user's computer data and holds them to ransom, saying they must pay $ 500 to decrypt the
files.
For those who might not know, a recap: Adobe Digital Editions is widely used software in the ebook trade for both library and commercial ebook transactions to authenticate legitimate library
users, apply DRM to
encrypt ebook
files, and in general facilitate the ebook circulation process — such as deleting an ebook from a device after the loan... Continue reading After Privacy Glitch, the Ball Is Now in Our Court →
Still others (such as Apple iBooks) apply a proprietary DRM — «Digital Rights Management» technology that
encrypts the content of an EPUB
file such that it can only be read on the vendor's own software and can't be «sideloaded» into other EPUB compatible reading systems — note that while Apple doesn't make their FairPlay DRM available to 3rd - party reading systems, even on Apple devices and computers, Apple iBooks does allow
users to «sideload» non-DRM protected EPUB
files that come from arbitrary sources.
When an
encrypted file is downloaded from a retailer it is locked to the
user's registered device.
When an
encrypted file is downloaded from Amazon it is locked to the
user's Kindle device.
Holly said: «Ransomware is not new, and the idea of
encrypting a
user's
files and making a monetary demand is far from cutting - edge in the cybercrime world.
You can still share
encrypted files with other Viivo
users, though.
It's a nice idea — that
users can
encrypt files that the cloud - company can not access; and subsequently is unable to turnover to...
«It allows
users to automatically
encrypt files before they're sent through TitanFile.
Files are
encrypted on the
user's computer, before they are shared or uploaded.
It wasn't whether the company had
encrypted its
user's
files that became the weak spot, it was the login credentials, which the company was forced to capture and then turn over.
It's a nice idea — that
users can
encrypt files that the cloud - company can not access; and subsequently is unable to turnover to the government (or courts?)
Private Conversations allows
users to conduct end - to - end
encrypted Skype audio calls between two people, and send text messages or
files like images, audio, or videos between them.
The five - year - old company, which has attracted
users by touting its
encrypted - messaging service, raised $ 850 million from 94 accredited investors in a Securities and Exchange Commission
filing late Thursday.
SlideDrive is a universal desktop and mobile platform that provides access and a means to transfer
encrypted files to and from pre-registered devices on a
user's SlideDrive account.
Telegram, whose initial date release was in August 2013, has pulled a lot of
users by touting its
encrypted - messaging service, raised $ 850 million from 94 accredited investors in a Securities and Exchange Commission
filing late Thursday.
The actual key to decrypt
files is stored on this device and any
user interaction — a password, a fingerprint, a trusted device, etc — that is used to access
encrypted data is really asking the Secure Element in the hardware to do the job.
Encrypted files can only be accessed by the particular user account that encryp
Encrypted files can only be accessed by the particular
user account that
encryptedencrypted them.
If the
user account that
encrypted the
files is logged in, they'll be able to access the
files without any additional authentication.
The maintainers of the Bitmessage P2P
encrypted communications protocol have released a fix after discovering that hackers were using a zero - day in attempts to steal Bitcoin wallet
files from
users» computers.
This means there is now a clear distinction between device -
encrypted content (like generic system data) and
file -
encrypted content (like app and
user data).
A variant of malware known as ransomware, it
encrypts a
user's
files rendering them inaccessible and demands that a ransom is paid to the perpetrators to regain access.
The exchange also uses pretty good privacy (PGP) for
encrypting the
files users need to send in verifying their accounts.
ImmVRse does away with these via a distributed app secured by cryptography, ensuring that sensitive
user data is
encrypted and storing index information on decentralized nodes, courtesy of the Interplanetary
File System (IPFS).
Russia's communications watchdog, Roskomnadzor, said that it has
filed a lawsuit against popular
encrypted messaging app Telegram for refusing to give the FSB access to its
users» private messages.
Other
users pay fees into the system to store their
files —
encrypted and duplicated — on this cloud.
After the virus infiltrates a computer and
encrypts user's
files, the head of the hacker group connects with the victim via e-mail demanding a ransom in bitcoins in exchange for a decryption key.
It also lets owners
encrypt particularly sensitive
files to secure them in case a PC is stolen — ideal for laptop
users.
LastPass takes the pain out of remembering all your passwords and login credentials by storing your
user details and passwords as an
encrypted file behind your master password.
UPDATE: Bleeping Computer notes that «if a
user uses a cloud storage service and regularly synchronizes their locate data with the cloud, the
files on the cloud will be overwritten by the
encrypted versions.»
If the
user has locale settings set to Russian, the ransomware will not
encrypt files.
The Guardian explained how the cyber attack happened, while the BBC reported that the ransomware, which was
encrypting users»
files and demanding ransom money for their release, had spread across 150 countries.
Files are
encrypted and stored on multiple servers and can be accessed or restored on any Web - connected device by authorized account
users.