Social engineering (security)

In information security, social engineering, a form of deception or psychological manipulation, is the act of persuading individuals to reveal confidential information, to access information or services, or to take actions that would not otherwise occur. Social engineering is a technique that involves manipulating individuals into disclosing information that allows an attacker to compromise systems or networks, according to the National Institute of Standards and Technology (NIST). Social engineering attacks can occur by utilizing many communications such as email, text message, telephone calls, social media, or websites. A popular social engineering technique is phishing, which also encompasses spear phishing, vishing, and smishing. Social engineering can overcome technical vulnerabilities as well as human decision making and trust. Security covers user education, double-checking the request, filtering emails and messages, multi-factor authentication, and phishing-resistant authentication.

Techniques and terms

Social engineering techniques are based on weaknesses in human decision-making known as cognitive biases. Social engineering is a form of psychological manipulation.

An example of social engineering would be an attacker who walks into a building and posts an official-looking announcement to the company bulletin that says the telephone number for the help desk has changed. When employees call the false number for help, the individual asks them for their passwords and IDs, thereby gaining access to the company's private information. Another example of social engineering would be a hacker contacting the target on a social networking site and starting a conversation with them. Gradually, the hacker gains the trust of the target and then uses that trust to gain access to sensitive information like passwords or bank account details.

Pretexting

Pretexting, also known in the UK as blagging, is the act of creating and using an invented scenario (the pretext) to engage a targeted victim in a manner that increases the chance the victim will divulge information or perform actions that would be unlikely in ordinary circumstances. An elaborate lie, it most often involves some prior research or setup and the use of this information for impersonation (e.g., date of birth, Social Security number, last bill amount) to establish legitimacy in the mind of the target.

Water holing

Water holing is a targeted social engineering strategy that capitalizes on the trust users have in websites they regularly visit. The victim feels safe to do things they would not do in a different situation. A wary person might, for example, purposefully avoid clicking a link in an unsolicited email, but the same person would not hesitate to follow a link on a website they often visit. So, the attacker prepares a trap for the unwary prey at a favored watering hole. This strategy has been successfully used to gain access to some (supposedly) very secure systems.

Baiting

Baiting is a form of real-world Trojan horse that uses physical media and relies on the curiosity or greed of the victim. In this attack, attackers leave malware-infected floppy disks, CD-ROMs, or USB flash drives in locations people will find them (bathrooms, elevators, sidewalks, parking lots, etc.), give them legitimate and curiosity-piquing labels, and wait for victims.

Unless computer controls block infections, insertion compromises PCs "auto-running" media. Hostile devices can also be used. For instance, a "lucky winner" is sent a free digital audio player compromising any computer it is plugged to. A "road apple" (the colloquial term for horse manure, suggesting the device's undesirable nature) is any removable media with malicious software left in opportunistic or conspicuous places. It may be a CD, DVD, or USB flash drive, among other media. Curious people take it and plug it into a computer, infecting the host and any attached networks. Again, hackers may give them enticing labels, such as "Employee Salaries" or "Confidential".

One study published in 2016 had researchers drop 297 USB drives around the campus of the University of Illinois. The drives contained files on them that linked to webpages owned by the researchers. The researchers were able to see how many of the drives had files on them opened, but not how many were inserted into a computer without having a file opened. Of the 297 drives that were dropped, 290 (98%) of them were picked up and 135 (45%) of them "called home".

Ad phishing

Ad phishing is a social engineering technique in which malicious actors use online ads to deceive users into believing they are interacting with legitimate brands or services. According to Google, these deceptive ads often mimic trusted entities such as banks, software providers, or customer support pages, leading users to fraudulent sites that attempt to steal passwords, credit card information, or other sensitive data.

Quid Pro Quo

An attacker offers to provide sensitive information (e.g. login credentials) or pay some amount of money in exchange for a favor. The attacker may pose as an expert offering free IT help, whereby they need login credentials from the user.

Scareware

The victim is bombarded with multiple messages about fake threats and alerts, making them think that the system is infected with malware. Thus, attackers force them to install remote login software or other malicious software, or directly extort a ransom, such as offering to send a certain amount of money in cryptocurrency in exchange for the safety of confidential videos that the criminal has, as he claims.

Tailgating (piggybacking)

An attacker pretends to be a company employee or other person with access rights in order to enter an office or other restricted area. Deception and social engineering tools are actively used. For example, the intruder pretends to be a courier or loader carrying something in his hands and asks an employee who is walking outside to hold the door, gaining access to the building.

3 more chapters are free with a Lably account.

Law

United States

Pretexting of banking records

The 1999 Gramm-Leach-Bliley Act (GLBA) is a U.S. Federal law that specifically addresses pretexting of banking records as an illegal act punishable under federal statutes. When a business entity such as a private investigator, SIU insurance investigator, or an adjuster conducts any type of deception, it falls under the authority of the Federal Trade Commission (FTC). This federal agency has the obligation and authority to ensure that consumers are not subjected to any unfair or deceptive business practices. US Federal Trade Commission Act, Section 5 of the FTCA states, in part: "Whenever the Commission shall have reason to believe that any such person, partnership, or corporation has been or is using any unfair method of competition or unfair or deceptive act or practice in or affecting commerce, and if it shall appear to the Commission that a proceeding by it in respect thereof would be to the interest of the public, it shall issue and serve upon such person, partnership, or corporation a complaint stating its charges in that respect."

The statute states that when someone obtains any personal, non-public information from a financial institution or the consumer, their action is subject to the statute. It relates to the consumer's relationship with the financial institution. For example, a pretexter using false pretenses either to get a consumer's address from the consumer's bank, or to get a consumer to disclose the name of their bank, would be covered. The determining principle is that pretexting only occurs when information is obtained through false pretenses.

Pretexting of telephone records

In December 2006, United States Congress approved a Senate sponsored bill making the pretexting of telephone records a federal felony with fines of up to $250,000 and ten years in prison for individuals (or fines of up to $500,000 for companies). The Telephone Records and Privacy Protection Act of 2006 was signed by President George W. Bush on 12 January 2007.

U.S. Rep. Fred Upton (R-Kalamazoo, Michigan), chairman of the Energy and Commerce Subcommittee on Telecommunications and the Internet, expressed concern over the easy access to personal mobile phone records on the Internet during a House Energy & Commerce Committee hearing on "Phone Records For Sale: Why Aren't Phone Records Safe From Pretexting?" Illinois became the first state to sue an online records broker when Attorney General Lisa Madigan sued 1st Source Information Specialists, Inc., a spokeswoman for Madigan's office said. The Florida-based company operates several Web sites that sell mobile telephone records, according to a copy of the suit. The attorneys general of Florida and Missouri quickly followed Madigan's lead, filing suits respectively, against 1st Source Information Specialists and, in Missouri's case, one other records broker – First Data Solutions, Inc.

Several wireless providers, including T-Mobile, Verizon, and Cingular filed earlier lawsuits against records brokers, with Cingular winning an injunction against First Data Solutions and 1st Source Information Specialists. U.S. Senator Charles Schumer (D-New York) introduced legislation in February 2006 aimed at curbing the practice. The Consumer Telephone Records Protection Act of 2006 would create felony criminal penalties for stealing and selling the records of mobile phone, landline, and Voice over Internet Protocol (VoIP) subscribers.

The law was passed at least partially in response to the Hewlett-Packard spying scandal. Patricia Dunn, former chairwoman of Hewlett Packard, reported that the HP board hired a private investigation company to look into who was responsible for leaks within the board. Dunn acknowledged that the company used the practice of pretexting to solicit the telephone records of board members and journalists. Chairman Dunn later apologized for this act and offered to step down from the board if it was desired by board members. Unlike Federal law, California law specifically forbid such pretexting. The four felony charges brought on Dunn were dismissed.

1970s–1990s

Kevin Mitnick, Susan Headley, and Lewis De Payne were involved in phreaking and computer hacking efforts involving social engineering in Los Angeles in the late 1970s and early 1980s.

The Badir Brothers, Ramy, Muzher, and Shadde Badir‍— all of whom were blind from birth‍— set up an extensive phone and computer fraud scheme in Israel in the 1990s using social engineering, voice impersonation, and Braille-display computers.

2011 RSA SecurID phishing attack

In 2011, hackers broke into the сryptographic corporation RSA and obtained information about SecurID two-factor authentication fobs. Using this data, the hackers later tried to infiltrate the network of defense contractor Lockheed Martin. The hackers gained access to the key fob data by sending emails to four employees of the parent corporation from an alleged recruitment site. The emails contained an Excel attachment titled 2011 Recruitment Plan. The spreadsheet contained a zero-day Flash exploit that provided backdoor access to the work computers.

2013 Department of Labor watering hole attack

In 2013, a U.S. Department of Labor server was hacked and used to host malware and redirect some visitors to a site using a zero-day Internet Explorer exploit to install a remote access trojan called Poison Ivy. Watering hole attacks were used, with the attackers creating pages related to toxic nuclear substances overseen by the Department of Energy. The targets were likely DoL and DOE employees with access to sensitive nuclear data.

2014 Sony pictures leak

On 24 November 2014, the hacker group "Guardians of Peace" (probably linked to North Korea) leaked confidential data from the film studio Sony Pictures Entertainment. The data included emails, executive salaries, and employees' personal and family information. The phishers pretended to be high up employees to install malware on workers' computers.

2015 Ubiquiti Networks scam

In 2015, specialized Wi-Fi hardware and software maker Ubiquiti lost nearly $47 million to hackers. Attackers sent Ubiquiti's accounting department a phishing email from a Hong Kong branch with instructions to change payment account details. Upon discovering the theft, the company began cooperating with law enforcement, but was only able to recover $8 million of the stolen funds, although they had hoped for $15 million.

2016 United States Elections leaks

During the 2016 United States Elections, hackers associated with Russian Military Intelligence (GRU) sent phishing emails directed to members of Hillary Clinton's campaign, disguised as a Google alert. Many members, including the chairman of the campaign, John Podesta, had entered their passwords thinking it would be reset, causing their personal information, and thousands of private emails and documents to be leaked. With this information, they hacked into other computers in the Democratic Congressional Campaign Committee, implanting malware in them, which caused their computer activities to be monitored and leaked.

2017 Equifax breach help websites

Following the 2017 Equifax data breach linked to China's People's Liberation Army in which over 150 million private records were leaked (including Social Security numbers, and drivers license numbers, birthdates, etc.), warnings were sent out regarding the dangers of impending security risks. In the day after the establishment of a legitimate help website (equifaxsecurity2017.com) dedicated to people potentially victimized by the breach, 194 malicious domains were reserved from small variations on the URL, capitalizing on the likelihood of people mistyping.

2017 Google and Facebook phishing emails

Two tech giants‍— Google and Facebook‍— were phished out of $100 million by a Lithuanian fraudster in 2017. The fraudster impersonated a hardware supplier to falsely invoice both companies over two years. The money was later recouped following action by the United States Department of Justice.

Countermeasures

There are several providers of training and education related to social engineering. In the 2000s, Mitnick collaborated on a training program for certified social engineering prevention specialists. Christopher Hadnagy, an American information technology security consultant, has written several books on social engineering and cybersecurity.