Cheating partners who think they’ve mastered the art of secrecy may actually be giving themselves away through the smart devices already in their homes.
Tech expert Kim Komando says old tells – lipstick stains or hotel receipts – have been replaced by a far more revealing digital trail, which suspicious partners can just as easily uncover, should they know how.
Smart homes, shared accounts and connected gadgets now quietly log behavior in the background, often without users realizing it.
Subtle clues like Bluetooth pairings, location pings and deleted Alexa recordings can all point to a second life.
‘The smart home was sold as convenience. It’s also, by design, one of the most comprehensive personal activity logs ever built,’ Komando told the Daily Mail.
Smart locks, which are electronic deadbolts that allow you to lock and unlock your door, can log every entry code used, while thermostats, motion sensors and alarm systems may document activity inside the house even after texts and call histories are deleted.
Komando also warned that AirPods, shared Apple IDs and family-linked smartwatches can broadcast location data that exposes secret meetings and repeated visits.
Some unfaithful partners have gone to extreme lengths to hide affairs with secret devices, locked boxes, hidden rooms or password-protected gadgets, although digital traces such as Wi-Fi logs, Bluetooth connections and smart home activity can still expose suspicious behavior.
Cheating partners who think they have mastered the art of hiding affairs may actually be exposing themselves through the devices sitting inside their own homes
Alexa and smart speakers
Voice assistants such as Amazon Alexa store huge amounts of behavioral information, including voice commands, reminders, music requests, timestamps and even conversations tied to activity inside the home.
‘Late-night requests. Door unlock commands. A name accidentally picked up when the wake word triggered nearby,’ said Komando while discussing some of the tell-tale clues smart devices can pick up inside homes.
Experts say some unfaithful partners attempt to erase voice history records to remove signs of suspicious behavior, including deleting phone calls made through smart speakers, wiping suspicious voice commands or removing music playlists linked to another person.
Others may delete reminders, calendar entries or late-night voice activity that could raise questions about where they were or who they were communicating with.
While smart speakers are designed to only record after hearing a wake word, like ‘Alexa’ or ‘Hey Google,’ accidental triggers, where a sound or normal conversation sounds similar enough to a wake word to start recording, do happen.
One woman found her husband was cheating after accessing her Amazon Echo, uncovering secret sex recordings of him and his mistress.
Many smart speakers can also capture snippets of nearby conversations after being activated by a wake word, or what the system believes is a wake word, meaning background voices and ambient sounds may sometimes end up stored in voice histories
‘I found out because I bought a new Amazon Alexa and while setting it up realized this is linked via our family prime account,’ the woman shared on Reddit.
‘Found in history, ‘Alexa play beautiful love songs,’ followed by the sound of them having sex.’
To find such recordings saved to an Amazon Alexa, open the Alexa app, tap More, go to Alexa Privacy, then select Review Voice History to see recordings by date or device.
Users can play back clips, delete individual recordings or delete their entire voice history.
If you own a Google Home, open the Google Home app and tap Activity to review recent home events, including camera, doorbell and device activity.
To check Assistant recordings, go to your Google Account activity controls and review or delete Google Assistant activity.
For Apple HomePod, users can review and delete Siri voice recordings by opening the Home app or going directly to their Apple ID settings on an iPhone or iPad.
Tap Settings, select Siri & Search, then choose Siri & Dictation History to listen to and delete stored voice interactions linked to the HomePod.
Apple’s device uses ‘always-on’ local processing to listen for the ‘Hey Siri’ wake word.
While it discards everything it hears until it hears the wake word, it can occasionally misinterpret background chatter or similar-sounding words as a command. When this happens, it begins recording and sends the clip to Apple servers to process the request.
Nanny and pet cameras
Devices marketed as nanny or pet cameras often include motion detection, live streaming, cloud recording, two-way audio and mobile alerts that activate whenever movement is detected inside a home.
Cheaters manipulate those systems to avoid being seen by disabling cameras before someone visits, changing motion-detection settings or redirecting cameras away from certain areas of the house.
Others turn off notifications, so suspicious activity is not immediately flagged to a partner who shares access to the system.
But experts say the very same systems can expose illicit behavior just as easily.
One woman said she caught her husband with their babysitter after installing a camera in the living room (stock image)
One woman said she caught her husband with their babysitter after installing a camera in the living room.
‘I felt I was going crazy because something was off and he refused to ease my mind and answer questions I had – so I put a camera in the living room and saw nothing [until] day 4, when he and the babysitter were making out on the couch behind my daughter’s back while she was watching TV,’ she posted on Reddit.
Anyone with access to the companion app can often review motion alerts, recorded clips, livestream histories and timestamps tied to movement inside the home.
That is where suspicious partners can uncover unexplained camera outages, sudden gaps in footage or cameras repeatedly going offline during the same periods each week.
Homeowners can review indoor security camera activity by opening the camera’s companion app and checking the History, Timeline, Events or Motion Activity sections.
These logs often show when cameras were turned off, when motion alerts were disabled or when recording settings were changed.
For systems such as Ring, Nest, Arlo, Blink or Eufy, users can also review account notifications and device settings to see whether cameras were placed in privacy mode, redirected away from certain rooms or temporarily disconnected from Wi-Fi.
Many apps also keep records of login activity, allowing users to check whether another phone or account recently accessed the system.
Experts say suspicious changes can sometimes be found by opening the app’s Settings menu and reviewing Motion Detection, Notification Preferences, Camera Status and Shared Users sections.
Manipulating ‘home’ and ‘away’ settings
Modern smart homes can automatically control lights, alarms, thermostats, blinds and cameras depending on whether someone is detected inside the house.
But those systems can also be manipulated to create misleading appearances.
For example, someone can schedule lights to activate while they are actually somewhere else, making it appear the home is occupied even when nobody is there.
Cheaters can also disable motion alerts before a visitor arrives or alter automation routines so suspicious notifications are not sent to a spouse’s phone.
And while some people attempt to use those automations to cover their tracks, the systems can also expose inconsistencies.
‘Trying to manipulate a smart home’s status often creates a more visible problem than the one it was meant to solve,’ Komando warned.
For Amazon Alexa, users can check whether smart home routines were used by opening the Alexa app and tapping More, then Routines.
This section shows automations controlling lights, plugs, thermostats or blinds, including schedules that may turn devices on or off at certain times even when nobody is home.
Users can check accessory activity logs to see when connected devices were activated
Google Home owners first open the Google Home app and tap Automations to review household routines and scheduled actions linked to smart devices.
Users can also check the Activity tab to see when lights, cameras or other connected devices were triggered remotely.
For Apple HomePod, open the Home app and tap the Automation tab to review schedules controlling lights, locks, thermostats or blinds.
Smart locks and hidden visitors
Connected locks are designed to improve convenience and security by allowing homeowners to remotely control entry into their homes.
But the systems also create detailed logs showing door openings, timestamps and individual access codes.
People have uncovered affairs after spotting repeated entries during work hours, unexplained late-night visits or temporary guest codes linked to unknown individuals.
Some smart-lock systems allow users to create separate profiles and temporary access codes for visitors, which experts say can leave behind detailed records of when someone entered the property.
‘You can wipe a phone completely and that log is still sitting in the app, intact,’ Komando said. ‘The phone is not the record. The cloud is the record.’
Suspicious partners have uncovered affairs by looking at their home’s smart lock activity, finding repeated entries during work hours, unexplained late-night visits or temporary guest codes linked to unknown individuals
Homeowners can review smart-lock activity by opening the lock’s companion app and checking sections labeled History, Activity Log or Access Events, which often show exactly when doors were unlocked and which code or user profile was used.
For systems such as Yale, August, Schlage, Nest or Level locks, users can also see temporary guest access codes, deleted profiles and remote unlock activity to see whether someone entered the home during unusual hours or while the homeowner was away.
Some smart-lock systems allow users to create separate visitor profiles and one-time entry codes, which experts say can leave behind detailed digital records showing when a person entered and exited the property.
Unusual Bluetooth connections
Modern cars can give away secret meetings, as many store digital traces of past passengers and connected devices.
That means unfamiliar Bluetooth devices, secondary phones or hidden smartwatches can sometimes remain visible inside a vehicle’s system even after they are no longer present.
Suspicious partners have discovered unfamiliar initials or unknown device names appearing on infotainment screens, while others noticed repeated navigation searches to locations they had never discussed.
Some say they became alarmed after checking vehicle apps and noticing unexplained trips, unusual charging locations or recurring destinations tied to a specific address.
Open the car’s Settings menu, select Bluetooth, Phone, Connections or Paired Devices, then look for unfamiliar device names, initials, earbuds, smartwatches or secondary phones.
One woman found her husband was cheating after accessing her Amazon Echo, uncovering secret sex recordings of him and his mistress (stock image)
Drivers should also check the Navigation, Recent Destinations, Search History and Saved Places sections for addresses, hotels, restaurants or neighborhoods they do not recognize.
For cars linked to apps such as Tesla, FordPass, myChevrolet, Toyota, Hyundai Bluelink or similar services, users can open the app and review Trip History, Location History, Charging History, Remote Start, Lock/Unlock Events or Vehicle Activity if those features are available.
The history in a phone’s Bluetooth settings can also be a giveaway, as many wireless devices continuously emit identifiable digital signals, creating what experts describe as invisible digital fingerprints.
‘A second phone nearby shows up in a Bluetooth scan. It might show up in the router’s device list,’ Komando said. ‘Between those two places, combined with the smart lock log and the thermostat’s occupancy history, you have something that looks a lot like a timeline.’
On an iPhone, go to Settings, tap Bluetooth and check the list under My Devices for unfamiliar accessories that may have connected.
Android users should open Settings, tap Connected devices, then review Previously connected devices or Saved devices for unknown phones, earbuds, watches or trackers.
Hidden devices and secret spaces
Some cheaters attempt to conceal affairs by creating hidden digital and physical spaces inside their homes where partners are discouraged from entering or using certain devices.
That includes secondary laptops, tablets, smart TVs or gaming systems that are kept separate from shared family devices and protected with passwords unknown to their partners.
One woman on Reddit said she became suspicious after discovering her husband’s iPad hidden inside a shoebox beneath papers and shoes at the top of his wardrobe.
The 40-year-old said her husband, 35, had always become angry whenever she tried to use the device, insisting it was a ‘privacy thing’ before eventually taking it with him to work every night in his bag.
But after stumbling across the iPad again, she decided to look through it. ‘I found it hidden in the wardrobe, so I’m having a look,’ she recalled telling him after he texted asking why she had the device.
She claimed that within seconds, her husband remotely activated the iPad’s lost mode and erased the device before changing the passcode and email password, leaving her locked out completely.
The woman said the incident reignited long-standing trust issues in the relationship after her husband had cheated two years prior.
Homeowners can uncover hidden devices in private spaces such as garages, sheds or ‘man caves’ by checking their Wi-Fi router or smart home app for unfamiliar connected devices.
Many routers display a list of phones, laptops, TVs, gaming systems and smart gadgets currently using the network, which can reveal unknown electronics hidden in rarely used areas of the property.
Unassuming smart devices
Perhaps surprisingly, even Smart TVs can be used for secretive communication or activities through various internet-connected features.
To check them, open the TV’s Settings menu and look for sections labeled Apps, Accounts, Privacy, Network or Connected Devices.
From there, review installed apps for messaging, video chat, hidden browsers or unfamiliar streaming accounts, then check whether any unknown phones, keyboards, headphones or Bluetooth devices have been paired with the TV.
A woman allegedly caught her husband cheating thanks to a notification from her smart scales
Users can also open apps such as YouTube, Netflix, Prime Video or Hulu and review Watch History, Search History, Profiles and Recently Watched for activity that does not match household use.
Then, check the TV’s Network settings or your Wi-Fi router app to see when the TV was last online and whether it connected during unusual hours.
Another device which unsuspecting partners might not think to check is smart weighing scales.
In a viral TikTok posted earlier this year, a creator called Dasha described the shocking situation in which a woman allegedly caught her husband cheating thanks to the device.
The woman, she said, had been away on a work trip ‘but got a notification from her smart scale that someone weighing 130 pounds weighed themselves at 3am.’
