Ransomware is a kind of cyber attack that involves hackers taking control of a computer or mobile device and demanding payment. It is a type of malicious software
designed to block access to a computer system or data until a ransom is paid. Simple ransomware may lock the system in a way which is not difficult for a knowledgeable person to reverse, and display a message
requesting payment to unlock it. More advanced malware encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. The best protection against ransomware
is to back up all of the information and files on your devices in a completely separate system. A good place to do this is on an external hard drive that isn't connected to the Internet. This means that if you suffer an attack you won't lose any information to the hackers.
The most expensive virus to date has been MyDoom, an email worm, which gave hackers remote control over systems, and conducted DDoS attacks.
MyDoom is also known as W32.MyDoom@mm, Novarg, Mimail.R and "'Shimgapi'", is a computer worm affecting Microsoft Windows. It was first sighted on January 26, 2004.
It became the fastest-spreading e-mail worm ever (as of January 2004, exceeding previous records set by the Sobig worm and ILOVEYOU,
a record which as of 2016 has yet to be surpassed.
Phishing is the attempt to obtain sensitive information such as usernames, passwords, and
credit card details (and, indirectly, money), often for malicious reasons, by disguising as a trustworthy entity in an
electronic communication. The aim of phishing is to trick people into handing over their card details or access to protected systems. A Verizon data breach investigations report has shown that 23% of people open phishing emails.
As of the end of 2016, around 40% of global Internet users shopped online to buy products or goods.
As of January 2016 there were 3.26 billion Internet users, of which 21.97% for China, 9.58% for the U.S. and 8.33% for India. 86.75% of the U.S. population and 89.90% of U.K. citizens use the Internet, and Bermuda has the highest Internet penetration at 97.75% (63,987 over 65,461 population). Asia accounts for 48.4% of global internet users.
As of January 2016 there were around 123.78 million registered .com domain names, accounted for 50% of all domain registrations, followed by the .tk with 27.7 million.
Hackers stole data on 500 million Yahoo! users' accounts in 2014, and more than 450,000 user accounts were compromised in 2012. Account user information includes names, email addresses, telephone numbers, birth dates, encrypted passwords and, in some cases, security questions.
Sina Weibo is a Chinese
micro-logging website, which has features that are similar to Twitter and
Facebook. It is one of the most popular sites in China, in use by well over 30% of Internet users,
and has about 100 million messages posted daily. It was launched by SINA Corporation
on 14 August 2009, and has 503 million registered users as of December 2012.
152,445,165 Adobe accounts were compromised in a massive October 2013 breach with each containing an internal ID, username, email, encrypted password and a password hint in plain text.
453,427 Yahoo! accounts were breached in 2012 via an SQL [structured query language] injection attack.
Apple Inc.reported a new record, with preorders for the new models,
iPhone 6 and iPhone 6 Plus, in the first 24 hours after its announcement day (September 9, 2014), surpassing 4 million, twice that for the iPhone 5.
About 2 million pre-orders were received for the iPhone 5 in the first 24 hours after it went on sale in September 2012. More than 10 million iPhone 6 and iPhone 6 Plus devices were sold in the first three days. Apple sold 5 million of iPhone 5 in the first weekend.
More than 200 million Apple users are running the new iOS 7 on their iPhones and iPads, and that more than 11 million unique listeners already tuned in to iTunes Radio in the first five days after it went live.
Apple took 21 days to sell 10 million iPhone 5s; Samsung took 50 days to sell 10 million Galaxy S IIIs
As of 3/2013 Microsoft's Internet Explorer has a 56% market share for Internet browsers on personal computers, Mozilla's Firefox has a 20% share and Google's Chrome has 17%.
Apple took 21 days to sell 10 million iPhone 5s; Samsung took 50 days to sell 10 million Galaxy S IIIs
Apple expects to sell about 250 million iPhone 5 with a projected revenue of $144 billion before the next generation of iPhone is released.
About 145.8 million iPhones were sold before iPhone 5 was released (9/21/2012).
There were about 94 million iPhone sold in 2012.
Around 75% of iPhone users slept with their iPhone next to them in bed, and 94% confessed to having a certain level of addiction to their iPhone.
Apple iPhone 5 vs Apple iPhone 4 - In addition to having a size that is taller, thinner and lighter than the size of Apple iPhone 4S, Apple iPhone 5 uses 4G LTE connectivity that has a speed as four times faster
than the one of Apple iPhone 4S, which only offers 3G HSDPA connectivity. iPhone 5 also has 8MP camera that can simultaneously capture 1080p HD videos and images while Apple iPhone 4 has 5MP camera that can only capture 720p HD videos.
As of 2012, Apple employs 60,400 full-time employees, but most of them are employees in Apple's retail stores (36,000).
As of August 2012, Twitter had about 900 employees, and over 500 million active users, generating over 340 million tweets daily and handling over 1.6 billion search queries per day.
As of March 2014, Facebook had 7,185 employees (June 2014) and about 1.28 billion monthly unique 1.28 billion worldwide. As of July 2012, it had
3,976 employees, and 955 million monthly active users worldwide (552 million daily active users), of which approximately 81% of its monthly active users were outside the U.S. and Canada, and 543 million active users using Facebook on a mobile device.
There were about 155.6 million members from the U.S., 52.8 million members from Brazil, 51 million members from India, 44 million members from Indonesia, and 36.2 million members from Mexico.
On average, teenagers send 60 text messages per day.
WhatsApp Inc., a 55-employee copmany that provides a mobile messenger service, was founded in 2009 by Brian Acton
and Jan Koum, both former employees of Yahoo! As of August, 2014, WhatsApp, which had over 600 million active users as of 9/2014, was acquired by Facebook for $19 billion in February 2014.
Google, which has about 31,400 employees as of 2012, is the Internet's leading brand in terms of number of users. In May 2012 it had 155 million unique U.S. visitors from desktop and laptop computers, compared with Facebook's 140 million.
In 2011 Google had 38.5% of the online advertising market, compared with 4.6% for Facebook.
Google learns about you while you enter requests into its search engine, the YouTube site, or receive or send emails using your Gmail account. Moreover, if you write memos on Google's online word processing program, Docs, Google will alert you if you misspell the name of a friend or co-worker who has communicated with you on Google's Gmail.
Google increased its share of the search market to 66.2 percent in January 2012, up from 65.9 percent in December 2011. Microsoft's Bing climbed from 15.1 percent to 15.2 percent, and Yahoo fell from 14.5 percent to 14.1 percent market share. (Source: comScore).
As of January 2017, Google is the #1 most popular website in the world, followed by Facebook and YouTube. As of 1/2012 Google+ had 90 million users and about 60% loged in every day.
As of the 1/2012 Bing Search supports 37 languages, including Arabic, Bulgarian, Catalan, Simplified Chinese, Traditional Chinese, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian and Vietnamese. Search in the English language with the English-French Bing translator can produce French language results.
Since 5/2011 Microsoft included comments from Facebook friends into its Bing search engine.
Facebook had more than 2000 employees as of 2010. Employee' benefits package sounds pretty sweet: medical, dental and vision health plans with no premiums, 401(k) plan, 4 weeks vacation and 8 company holidays, free catered breakfast, lunch and dinner every day, dry cleaning and laundry services, and a free IBM Thinkpad or Apple MacBook Pro.
4.33 million hours are spent on Facebook each day (worldwide); more than 13 million users update their profile daily.
Today there are more than 300 social networking sites around the world with 80% of sites having headquarters in the U.S.
MySpace grew at a rate of about 157 member profiles every minute totaling about 82.7 million new profiles a year.
While other social networks have a broader age demographics, member profiles in Bebo and Xanga consist mostly of teens and early 20's.
57% of social network users are female; 35% of all users (male/female) are 18 to 29 years old, 23% of them are students, and 48% are single.
Nearly half of all students under 18 years old who have access to the internet have their own personal profiles on social networking sites.
The number of U.S. consumers who frequent online video sites has climbed 339% since 2003, while time spent on these sites has shot up almost 2,000% over the same period.
In China, surveillance and censorship of the Internet's use are very extensive. The Chinese government has mandated that all computers in the country must have the government screening software installed. Reporters Without Borders lists China as one of 13 "enemies of the Internet
43% of China's Internet users contribute to net forums and discussion boards. The most prolific group is young professionals with ages between 25 to 29. 37% of bloggers post daily, and 41 million of users engage in at least 6 activities that connect with 84 people on a weekly basis.
42% of Hispanic Internet users report downloading content compared to 35% of all U.S. adults; 55% of Hispanic users send text messages; 28% send pictures; and 15% downloaded a video game and sent/received email.
In the United States there are about 220 million Internet users (70 percent of its population) in 2009, of which 99 percent of Internet users had home access and 1 percent used Internet cafes.
Sweden has the highest percentage of internet users (72 percent).
33% of Americans (all ages) have social networking profiles; 40% of them visit their profiles daily.
About 42 million Americans tune into online radio each week.
As of October 2009, there are about 200 million free email accounts provided by various groups, of which Yahoo! Mail: 105,458,000, Windows Live Hotmail: 48,962,000, and Gmail: 39,251,000.
Netscape found by Jim Clark, Marc Andreessen and Eric Bina,
is the first Internet browser developed by Netscape Communications, Inc. (formerly known as Netscape Communications Corporation) and made it available for the public use in October 1994.
Yahoo!, found by Jerry Yang and David Filo in January 1994,
as "Jerry and David's Guide to the World Wide Web", is a web portal with a web directory providing an extensive range of products and services for various online activities.
Always check that you are at an https:// site (secure site identified by the “s” after http) before entering Personally Identifiable Information (PII) or financial information. PII refers to information that can be used to uniquely identify, contact, or locate a single person or can be used with other sources to uniquely identify a single individual.
Don’t give access to your computer to anyone who contacts you.
Never give your credit card or financial information – or your passwords – to anyone who calls asking for them.
Hang up on anyone who pressures you to pay for a computer security product or service. If you have concerns about your computer’s security, call a reputable computer security company using a number you know is really theirs. If you need to check a company out, search its name online with words like “review,” “complaint,” or “scam.”
Do NOT put photos of yourself or give out your real full name, date of birth, social security number, bank account numbers, credit card number, addresses, phone numbers, schools, or other personal information online for the public view
If you receive a warning that a certificate is not signed or is invalid, close the window, and do not continue to the website.
Be careful and limit to use hotel or other public computers to check your emails, make financial transactions or login to your company's network. There is an extremely high probability that they contain keystroke loggers or other malware and can record the sites you visit, your login ID and passwords.
Be careful and limit to use public wireless access points to connect to your company's network. Because they are public, they are not encrypted or secure. When you use public wireless access points, others can access your computer to install malware or simply record everything you send over the wireless connection.
Make sure your browser is set to prompt you before installation of cookies on your computer and then clear cookies regularly.
Save downloads or e-mail attachments and scan them before opening them.
Verify that the protection program installed in your computer covers anti-adware, anti-spyware and enabled blocked pop-up programs.
Use anti-malware programs that provide website warnings and safety before surfing. Avoid web surfing to non-green or questionable sites.
Be aware that spyware can masquerade as antispyware software. For example, Lavasoft’s Ad-Aware is a valid anti-spyware tool, but A-daware and Ada-ware are reportedly imposters.
If downloading a program, type in the URL instead of clicking on it. You can check URLs by right-clicking to see if the properties show the link correctly.
Nothing is free on the Internet.
Reject offers of free screen savers or pop-up ads offer. Use ALT+F4 to close the pop-up instead of clicking the X or Close buttons.
Don’t respond to pop-up boxes that tell you about a great deal, or that you've won something. Use ALT+F4 to close the pop-up.
Do not forward unsolicited bulk e-mails to friends. This is the most common way of distributing malware.
Do not download software from gaming, music, or pornographic sites; they almost always contain spyware, adware or scumware.
When using the Internet to purchase a product, be sure to carefully read the terms and conditions of sales transactions.
Be sure to review credit and debit card statements after making a purchase on the Internet. If an authorized charge was made, try to resolve disputes with the merchant, contact immediately the card issuer to request a chargeback, and report the issues to the Better Business Bureau and the FTC.
As of the end of 2011, China had about 511,963,000 (or 38.30% of population) number of Internet users; 242,614,880 (or 77.86% of population) for the U.S; 119,749,712 (or 10.07% of population) for India; 101,376,528 (or 79.53% of population) for Japan; 67,621,622 (or 83.00% of population) for Germany;
51,962,632 (or 79.58% of population) for France; 51,412,657 (or 82.00% of population) for United Kingdom; 40,856,403 (or 83.80% of population) for South Korea; 88,917,974 (or 45.00% of population) for Brazil; and 69,837,538 (or 49.00% of population) for Russia. - A complete list of countries by number of Internet users.
As of the end of 2010, China had about 126,337,000 (or 9.42% of population) number of fixed broadband subscriptions; 85,723,155 (or 27.62% of population) for the U.S; 34,044,729 (or 26.91% of population) for Japan; 26,089,800 (or 31.70% of population) for Germany;
21,345,000 (or 34.00% of population) for France; 19,579,823 (or 31.56% of population) for United Kingdom; and 17,193,570 (or 35.68% of population) for South Korea. - A complete list of countries by number of broadband Internet subscriptions.